# SCIENTIFIC ABSTRACT ETINGOF, S.V. - ETKIN, V.S.

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CIA-RDP86-00513R000412220020-8

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RIF

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S

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100

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January 3, 2017

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July 28, 2000

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20

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Publication Date:

December 31, 1967

Content Type:

SCIENTIFIC ABSTRACT

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- RTINGUY. S.V' -'_-,
M~ 11
Reduce the scutching tow content In short heap, fiber. Tekst.
prom. I? no.6:63 Je 157. KRA 10:7)
(Hemp)
POPOV, V.M., prof., doktor tekhn. nauk; RODIN, A.111., Inzh.; BATANOGOV,
A.P., Inzh.; TTI ~IGOVI inzh.
Performance of automatic fans and heating equipment at Northern
Ural bauxite mines. Gor. zhur. no.4:48-52 AP 165. (MIRA 18:5)
1. Vsesovuznyy zacchnyy politekhnichoskly institut, Moskva (for
Popov, Rodin, Batanogov), 2o Severourallskiye boksitovyye rudniki
(for Etingov).
Vladimir Nikolayevich, prof., doktor tekhn. nauk;
VOLZIISKTY, Vladlen Yiklhaylz~vlch, gornyy inzh.;
T11.0FEYEV, Oleg Vladimirovich, dots.,kand. tekhn. nauk;
SHIROKOV, Anatolly Pavlovich, kand. tekhn. nauk;
KROGIMIKO, Grigoriy Ivanovich, kand. tekhn. nauk;
PIWIL11. Boria Kftrpovich, kand. teklm. nauk; 7:FLNg~~V,
Semen pMvy inth.t NESYEILIINKO, G.T.. kn='.
telcl'n-.~azN', reLsenzent
[RCLJ bu.ILIjjg] Shtangoveita krop'. Moskvtt, Nedra, 1965,
327 p. (MIRA 18:7)
1. ZavaduyushohAy kafedroy Leningradskogo gornogo Instituta
im. G.V.Plekhancwn (for ro-movskiy). 2. Leningradskly prnyy
Institut Im. G.V.Flekhanova (for Volzhskly, Tirofeyev).
3.--Auznetskiy naw:hno-issledovatellskly ugo2lnyy institut
(for Shiroko. ).
ETINGOV) V.I., Inzh.; GUSEVA, L.A., inzh.
Characteristics of flaw detection In welded joints of high-pressure
vessels used in the chemical 11ndustry. Svar.proizv. no.2:38-39 F
164- (MIRA 28!1)
1. IrkutsUy filial VsesovuznoL:,o nAuchno-1 ssledova tell skogo
konstruktorskoRo instituta khimicheskogo mashinostroyeniva.
SAMSONOVP G.V.; ETINGOV, Ye.D.
S-lectivity of Ion-exchange sorptlc.--~- of riatowycin on cation-
exchange resins. AnLibiotiki 10 no.11.9921-996 N '65,
OCRA
1. Leningradakiy khimiko-farmatsevticheskly institut. SubraiLted
AprAl 26, 1965,
POPOVSKIT, Mark Alekoandrovich; 3TIXGOl?..,Te.B., red.; TRSTIYACHKYKO,
'r~a- -
B.F.. red.; OWRIROV, N.S., tekhn, a
(When a physician dreams] Kogda vrach mechtaet. Koskva, Vs8s.
uchabno-padegoh.izd-vo Trudrezervizdat. 1957. 189 p. (MIRA 12:3)
(MEDICINE)
SANk.1c,"Ic"ll G.V.; ETMIGOV, Y-4.D.
~
Nttermination of the eqljlvalc~~:t wclf-~t, rf f7r,",,
fluMber and molocultir welght, of
Ajitibicitiki 10 no-5:401-405 My 165. 1%,Ii-TRA 2-8:6)
1. Lenl. rig radak iy khtn'llo-fama tsev t 1 v. hz~ - Ic -, *,nstillut.
.i -
UM/ Chemistry - Physical chemistry
Card 1/1 Pub. 22 - 39/56
Authors S StepukhovJchs A. D.,, m-d Etingof,' if
Title I Steric factors-of elementary reversible reacticnis of H-, arA Mb-rad4c.-ils
with simple olefines
Periodical I Dok. All SSSR 99/5., 815-818,, Dee 11j, 1954
Abstract I The results obtained by calculating the steric factors of reveroibl-_ ele-
mantary reactions of H-., mid CH -radicals, vah olefine tii-r2
prasented. It vras established &at the steric factors
actions of the IWdrogen atom separation fram the olofine
of the 11-radical have one and the same order of
factors of roversible reactions betueon V nyl-, all-, I
rl,dicals ard a =thanc molecule have an order of mr~
cqunl to tho steric factor of dircct reaction:3. Th?
dIT'ro-CC-11CO~ in tho storic factors in analct-ou:7
Eifl~it referonces:
r n'
UsSR1 Chemistry - Physicai cl~e~mistry
Card 1/1 Pub. 147 - 5/22
Authors s Stepulkhovich, A. D.p and Etingof, Ye. I.
Title t Sterie factors of elementary reversible reactions of H- and CH3-radicals,
with simple olefines
Pariodical i Zhurs fiz. khim. 29/110 1974-1983, Nov 1955
Abstract i Experimen~s showed that t6 steric factors in reactions leading to dis-
placement of H-atoms by olefine molecules and rojulting in the formation of
ccmplex unsaturated radicals have a value of 10-;~. The steric rotation
factors of complex radicals having a double bond with the hydrogen molecule
w6re found to have a value much lower than the steric factors of reversible
reactions. Reactions of complex radicals with visple molecules showed much
lower values of the steric factors than reactions of simple radicals with
complex molecules. Fifteen refez;ances: 13 USSR and 2 USA (1948-1955).
Tables.
Institution t 3&ratov State University im, N, G, Cherrqehovskiy
Submitted : October 23, 1954
PBTUMIOVP P.Z., doktor tekhzi.nauk; KAZANTSEV, A.V., inzh.-mekhanik;
GUSAROV, M. L. gornyy imb.; ETINGOV. S. I.,,__gor72.V inzh.
Effect of blasting on rod bolting. Gor. zhur. no.12:27-
30 D 161, (KM 15:2)
1. Urallskiy politekhnicheskiy inatitut im. Kirova (for Petukhov,
Nazantsev), 2. Severourallskiye boksitovyye rudniki (for
Gusarovp Itingov).
Blasting)
Kine roof boltin4)
~
ZASLOV, V.Ya.; MURZIN, G.A.: PAVLOV, O.V.; BELYAYEV, S.G.; ETINGOV, S.I.
Powered tool for installing roof bolting. Gor.zhur. no.4-155-58 '-
Ap 164. (MIRA 17:4)
1. Nauchno-issledovatellskiy i proyektno-konstruktorskiy
institut gornogo i obogatitallnogo oborudovanlya (for Zaslov,
Murzin, Pavlov, Belyayev). 2. Severourallskiye bol-sitTrjye
rudniki (for Etingov).
KAZANTSEV, A.V.1 ETINGOV, S.I.
The load on roof bolting In the room and pillar system of mining.
Gor. zhur. no,1101-36 N 164, (MIRA 18t2)
1. Ural'skiy politakhnicheekly Inatitut Im, Klrova (for
Kazantsev). 2. Severourallaklys boksitovyys rudniXI (for Etingov).
ITIS, V.S.; RAZUTAMIT, G.A.
C.".. ihmthesis and properties of som thioxanthans-5-dioxide derivr-tives,
possessing the indicator proportion. Zhur. ob. khim. 27 n0.110092-
309? N 157. (MIRA 110)
(Xanthons) (Indicators and testpaper)
I :, b ~ - ." - -VKHIA, F., master.
~. KA)t
'."hat happona when the collective apyeerpnt io broker. .,ov.f.,rrfsoiuzr
5 no.7:58-60 JI '57. 10:8)
(Khark-ov-Pachinery- industry)
TARTAKOVSKIY, V.I.; ETKIN, A.A.; KOGAN, M.L.; SHMINMEN, M.
Analog position system of program control for boring and tur-nlngf latheq.
Stan. i instr. 36 no.4vl8-20 Ap 165. (MIRA 1&5)
ETKIN., B. Z.
Moscow Veterinary Audemy
"Treatment of wounds with "Trephonated serum."
SO: Vaterinarl a 26(9)j 1949, P. 38
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C POW35111 400 Plapillylss wbil
1, A. 1. &niniovskil and G. S. Etkin.
70% of Nut
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1. 13OLISHIKH. A. S. and IAPIN, A. A. and YrTKIN, L, G.
2. ussR (6oo)
4. Tenting Rachinec
7. Resonance type of machine for fatigue teatinge VeBt.wauh. 32 no. 10, 1952.
9. Monthly List of Russian Accessions, Library of Congress, Febrwiry -1953, Unclassified.
WKI N, L. G.
Method for determining the capacity of machine parts and units
to dissipate eftergy during vibrations. Zav. labs 22 no.12:1480-
1482 '56. (KLRA 1012)
1. Nauchno-issledovatellakiy institut vesov i priborov.
(MiRchinery-Vibration)
FHASZ I BOOK MILOITATION SOV/3891
Moscow. ftwhno-Issledovatelloldy institut Tonov i priborov
Vesoi=ekte1'rqye pribory i ispytatelInyye mashiny; teorlya, i raBehet,, Cvyp. 11
(Load-Measuring Devices and Testing Machinery; Theory and Design, (no. 13)
Moscow, Mashg1z, 1959. 178 P. 3,600 copies printed.
Sponsoring Agency: RSPSR. Hookmkiy skonamich skiy rayms S&Yet narodnogo
khozyaystva.
Ed.: N.A. Mironov, Engineer; Ede of Pukiishing House: L*G. Prokoflyeva; Tech.
Edo: Z.I# Chenova, and V.D. Z11kind; Managing Ed. for Literature on'Machine
and Instrument Construction (Mashgiz): N*Vo Pokrovskiy., Engineer.
FUU10SE: This collection of articled is intended for scientific workers and tech-
ni6al personnel speci&Uzing in veighing devices,, instrment construction, and
related fields. It say also be userul to students of ischools of higher tech-
nical education.
Card l/ 3
',,,ad-Measuring ~)evices and Testing (Cont.) SOV/3891
Felikson., Ye.I. [Candidate of Technical Sciences] Investigation of Imper-
fections in the Elasticity of Force-Measuring Springs 118
RaYtman, I.M. (Candidate ~f Technical Sciences). Measurement of Dynamic
Loads of Hydraulically Actuated [Patigmi-I]Testing Machines 136
Bollshikh., A.S. (Engineer]. Analysis of the Accuracy of Measuring
Dyhamic Loads in High-Frequency [Fatigue-]Testing Machines 166
Etkin L.G. [Engineer]. Evaluation of Force-Excitation Effectiveness in
. . ...... Vati ~-~Tes ing Machines Operating in a Self-Oscillation Regime 172
AVAILABLE: Library of Congress
VL/pw/gmp
Card 3/3 8-25~6o
30V/32-25-7 _70/50
.1
Method for the Determination of Elasticity Moduli of Materials at Temperature~'
up to 12000
is transferred on to an arrangement containing a phase trans-
former, amplifyers, filters for high frequencies and pre-
liminary amplifyers. A precision instrument for measuring
frequencies was designed (Fig 2) in order to measure the (E)
and (G) values, A quartz generator with a thermostat, type
22-P, (part of the chronograph produced by the Leningradskiy
zavod elektricheskikh chasov (Leningrad Factory of Electrical
Clocks)) is used as time standard. The voltage of the
generator is transferred to the frequency distributor over
four decades of the type DF-2. An electron-stabilized rectifier,
type ESV-1m, is used for feeding the testing apparatus de-
scribed of the type MU. The apparatus MU was produced at the
Opytnyy zavod VIKIMP (Experim. Plant NIKIMP). There are
2 figures and 1 Soviet reference.
ASSOCIATION, Nauchno-isaledovateltskiy i konst-ruktorskiy institut ispyta-
tellnykh mashin, priborov i sredstv izmereniya mass
(Scientific Research and Construction Institute of Testing
Card 2/2 Machines, Tenting Apparatus, and Means of Mass Determination)
el
33,
ETKIE, L. G., Cand Tech Sci -- (diss) "Problei.~,s of thu excit,:~tion of
variable loads on auto-swinging conditions in fatirt7ue testixi6 macnines."
f.'Joscow, 1960. 14 pp; (Ministry of Higher and Secondary Specialist Educ-
ation uSSR, Moscow Aviation Technology Inst); 15U copits; price not
given; bibliography at end of text (15 entries); (KL, 18-60, 153)
4~ T/(
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24 (3) S1119160100010210041015
AUTHORt Etking-L. G.9,_Engineer ,y\ BO14/BO14
TITLE: On the Generation of Vibrations of Elastic Systems by
Electromagnetic Exciters V
PERIODICALs Priborostroyeniye, 1960, Nr 2, pp 11 - 13 (USSR)
ABSTRACTs The vibration of mass m with one degree of freedom generated
by an electromagnetic exciter is investigated in the present
paper. Firetp the author refors to a paper by V. 0. Konenko
(Ref 1) in which the influence exerted by the constant
magnetic flux in the air gap of the electromagnet upon the
vibration of the armature was studied. The force acting upon
the armature and the equation of motion for mass m are de-
fined by equations (1) and (2). Equation (2) is transformed
into equation (3) by way of substitution. Solutions for_Q~
were derived by L G. Malkin (Ref 2)9 G. S. Gorolik (Ref 3)t
and S. N. Shimanov (Ref 4)9 series W- Substitution of
series (4) into equation (3) and subsequent comparison of
the coefficients lead to equations (5) whcee solutions yield
an approximate solution of equation (3). It develops that
Card 1/2 the solution of (3) may be represented as the sum of har-r
01"
On the Generation of Vibrations .of Elastic Systems .9/119/60/000/02/004/015
by Electromagnetic Exciters BO14/BO14
monic oscillations. Nextv the shape of the vibrations of the
system under consideration is obtained from these solutions.
Firstq the author studies the case of resonance. Results are
represented by curve 1 (Fig 2). Curve 2 (Fig 2) illustrates
the vibration generated with a frequency which is lower than
the resonance frequency, The oscillograms in figures 3 and 4
show that for the second case there exists no sinusoidal
voltage in the transverse-part of the U-shaped electromagnet.
Finally, it is noted that the 8olution of equation (3) in the
form of equation (6) is to be regarded as the actual
approximation of the motion of the arinature within the mag-
netic field. This was also confirmed by experiments. This
solution is characterized by the fact that the periodicity
of the coefficients of equation (2) is taken into accoun),_,/
There are 4 figures and 5 Soviet refPx'm_ces_
UV
Card 2/2
23467
S/115/61/ooo/006/003/oo6
56 ak,2-D 1'5 2 72 0 0 -7. 2.2- 0 0E073/E535
AUTHOR% __zqCjR._L_G.
TITLE., Strain Gauge Dynamometer
PERIODICAL: Izmeritel2naya tekhnika, 1961, No,,6, pp.21-22
TEXT-. In measuring forces it is important to exclude the
influence of non-central load applications and lateral forces.
The Nauchno-isoledovatel*skiy 1 konstruktorskiy institut
ispytatelgnykh mashin, priborov i sredstv izmereniya mass
(NIKIMP) (6cientific Research and Design Institute for Test
Machinery Instruments and Mass Measuring Apparatus) developed an
experimental strain gauge dynamometer for 5 tons which in
sensitive only to forces directed along the axis of the dynamo-
meter and is insensitive to lateral forces. The elastic element
(Fig.1) is made of Steel 1~.OX (40Kh) heat-treated to a hardness
HRC 35-38. Inside the rigid body I there is an elastic rod 2
of rectangular cross-section. The rectangular plates 3 take up
the transverse forces and the bending moments acting on the
dynamometer. Calculations of the prototype have shown that all
the bridging plates take up no more than 1% of the axial forces
23467
Strain Gauge Dynamometer S/115/6i/ooo/oo6/003/oo6
. E073/E535
acting on the elastic rod; since these bridging plates operate
in the elastic range, the forces on them can be taken into
consideration in calibrating the dynamometer. The bending moment
caused by transverse forces acting on the dynamometer drops
rapidly from one plate to the next and at about one-third from
the root of the elastic rod these equal zero. It is at that
point of the elastic rod that the wire strain gauges are fitted.
These have a resistance of 400 Ohms, they are fitted on a 10 mm
base and are made of 30 1i diameter constantan wire, which is
glued on a f ilm of -j (BF-2) glue. Fig. 2 shows the gluing spo't a
and electrical circui-t of the strain gauges, which are so designed
that any influence of the elastic rod on the measuring results is
eliminated. The transverse forces did not show any appreciable
influence during the tests, In th case of full load. the stress
in the elastic rod reaches 25 kg/mm This relativelylow stress
permits obtaining an elastic moment with a linear characteristic
and a-low hysteresis; the characteristic is linear within
+0.16 and -.0.1%o Calibration of the dynamometer and checking of
its readings was by means of a 5-ton stationary dynamometer
23467
Strain Gauge Dynamometer S/115/61/000/006/003/Oo6
E073/E535
LIOI"'-S (DOII-5) with an error of 0.1% of the measured load. Th6se
tests have shown that the error of the prototype in forty tests
carried out over three months did not exceed 0.3% of the measured
load beginning from 0.1 of the full scale reading. Variations in
the dynamometer readings were between the limits: -0-17 to +0.1%
and -0.5 to+o.45%. For recording the dynamometer readings an
automatic instrument with eleven measuring channels was used.
There are 2 figures.
EAbstractor's Note: This is a slightly abridged translation]
rn?-d %14
S/115/61/000/012/003/005
E198/E455
AUTHOR: Etkin, L.G.
TITLE'. Vibration dynamometers
PERIODICAL: Izmeritellnaya tekhnika, no.12, 1961, 27-30
TEXT: A- new type of dynamometer of high accuracy is described,
Its construction is shown in Fig.l. Both the crosspiece and the
rod with their respective electromagnets and amplifiers form
electromechanic oscillatory systems, with frequencies practically
equal to those of their free mechanical vibrations. The latter
are determined by the dimensions and also, in the case of the
crosspiece, by the tension caused in it by the deformation of the
ring under the load P. The measurement of the load can thus be
reduced to the measurement of the frequency of the oscillations
in the crosspiece system. The oscillation frequency of the rod
system is constant at a fixed temperature and the system is
temperature-compensating. The dimensions of the rod can be
calculated by the usual formula for the transverse vibrations of a
rod fixed at one end. The dimensions are selected according to
the range of loads for which the best compensation is required.
Computation of the free vibration frequency for the crosspiece can
Card 1/0
S/115/61/000/012/003/005
Vibration dynnniometors n98/e455
be carried out either directly, which is rather involved, or by
means of the approximate Rayleigh method, giving a very good
agreement (error not exceeding 0.8% at 4000 kg.wt for a 5 ton
instrument). A series of computations carried out for various
crosi-sectiona and lengths of the crosspiece show that the longer
and thinner it is, the more sensitive is the instrument. On the
other hand, the deviation of its characteristic from the linear
increases with sensitivity, An accuracy test for a 5 ton model was
carried out at VNIIM im. Mendeleyev with the aid of a standard
static dynamometer, accurate to 0.1%, and the results have shown
that the dynamical instrument can easily be brought up to the same
order of accuracy, Another advantage is the possibility of
constructing a registering apparatus with accuracy much higher than
that of the elastic element. The disadvantage of the somewhat
nonlinear characteristic at higher sensitivities may be remedied by
research now in progress, There are 5 figures, 1 table and
3 references; 2 Soviet-bloc and 1 non-Soviet-bloc,
Card 2/,$ -_~7
ETKIN, L.G.
Vibratory dynamometers. Priborostroenie no.8s28 Ag '62.
(WRA 150)
(Dynamometer)
L 19819-65 EW(d)/9EC(k)-2/=-4 -F,0-h/Pq-4/Pg-h/Pk-h/P1-4
ACCESSION NR: AP5001031 S/0115/641000/011/0035/0037
AUTHOR: Etkin, L.-G.; 'Xanovs!tiy. V~ Ya.;.Ramm, D. V.
TITLE: Effect of -inertial forces on vibration-f requency sensors
SOURCE: lzmerite0naya-tekhnika, no. 11, 1964, 35-37
-TOPIG TAGS: meas'ur' 12r
ing sen _~_ vibration frequency nensor, primary element-
-ABSTRACT-.- --Some theoretical considerations are-offered-regarding the effect of-
inertial (e.g., centrifugal) forces, on -vibration of the sensitive element represented
~by a flat bar with one constrained and. Several positions of the bar with respect to
the inertial-force field are analyzed: (IV Centrifugal and Coriolis forces are
applied in the maximum- stiffne s a plane of the bar,, (2) Cent]-ifugal and Coriolis
forces are at right ang les I 'etc i , Formulas for calculating fzequency errors are.
d v
elo
developed. Orig. art. has: 24iguresand 14 formulas*
ped Or
IAT'ONI.ig' art, has 1, L
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DOR?,FIYEVI D.D., inzh., RAII-111, D.11,y inzh.; FTEIN) kand.tek-hn.nauk
Some prj)bl,~ms tn the theory of vibraflon-frequericy trarl--ducera.
Pribaroatroenle no.3.-I.0-13 Mr 165.
(MIRA 18:4)
r
or
ETP(b)/ET0(M) WW
ACC M I AP5026108
SOURCE CODEs UR/0119/65/0001010/0009/0010
AUTHOR: Belyayev, M. F. (Engr.); Dorzhiyev, D. D. (Engr..); Min, L.
(Candidate of techni1a-1 sciences)
ORG: none
TITLE: Vibrat5on-frequency pressure sensors 10
SOURCE: Priborostroyeniye, no. 10, 1965, 9-10
TOPIC TAGS: pressure sensor, pressure transducer
ABSTRACT- The development of a new vibration-type pressure sensor is reported.
Its operation depends on the variation of stress in a composite dikDhxagm deforxed;
by the pressure being measuredDAhe strained diaphragm initiates vibrations in an
adapter connected to an oscillator whose feedback is zgain associated with the
diaphragm.* Two varieties of the sensor,for 50 and 100 atm, were testedi the sewor
error was found to be 0.13/0 or lower; the effect of the ambient temperature
(displacing the entire characteristic of the instrument) could be excluded.
Formulas for designing the sensor are supplied. Orig. art. has.- i figures,
9 formulas and 2 tables. UDC: 62.531:62i-3.o83.o8
Card 111~iq -CODE: IE/ . SUM DATE: 00/ CRIG REF; 000/ OTH REF: 000
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ARA OV, A.S.; BORISOV, V.A.; GALIPMRIN, I.I.; GUREVICH, A.G.: DOV=,
G.T.; PARSHIN, R.N.; SOKOLOVSKIT, S.M.; SKUKHOV, V.L., SHIFRIN.
D.L.; ZTKIN, N.V.; GETITH, V.A., red.toma; YELIN, V.I., red.toms;
SOLDATOV",-'Ir,lfo'-,-'red.toma; STYATITSKAYA, K.P., vedushchiy red.:
TROFIMOV, A.V., takhn.red.
(1quipment used in the petroleum industry] Keftianoa oborudoyanis;
v shesti tomakh. Kookva, Goe.nAuchno-tekYn.izd-vo neft. i gorno-
toplivnoi lit-ry. Vol.l. [Compressors and pumps] Kompressory I
nasosy. 1958. 234 p. (MIRA 12:5)
(Petroleum industry--Equipment and supplies)
(Pumping machinery) (Compressors)
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2158. NEW HATMAL (EVANDING C#=W) POR WATERPRWING MAL *o
LININGS. Etkin" S. H. (Gorcyl Zb. (Min. J.)p Dec. 1950, 33-34). .00
Nameacturs, of the rapid h^rdening, %ift setting oftent WUUDDsd
in P.A., Fob. 1"l n a 9 724 Is described. It is a abfture of 20%
calalum. hydro-al,!;IZ7; lpropar,4 rrm slakd lime, sluminous cam"
: wo water), 15% gyps= and 65% aluminous c4sent. (Q.
o
-ago
4
8: S L A 411AW.-GKAL W9641LAIE CLAWFKAVOCO
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ETKIN, V. ISAYEVp S. G., BYYOVj F. f7.
Cigarette Manufacture ard Trade
Increasing productivity of a Kurkevich" type cigarette packinp machine, Tabak 13 N"o. 1
1952.
9. Monthly List of Russian Accessions, Library of Congress, jiin 195~. Unclassified.
2
2163. EtUn. V.S.
Nabivnaya Mashim SisterV Kurkevicha. M., Pishchepromizdat, 1954- 80 3.8 nl
22sm. 2.000 ERZ. 2r. 50k.
(54-56266)p 679-74-05
, I(SANDROV) 0
'ALL N.V.; GERSIITNZON Ye.M.;_LTILIAL V.5.
Regenerative low-noise microwave amplifiers. ElektrosviaiI15
no.6:31-37 Je 161. (MIRA 14;6)
(Amplifiers (Electronics))
USSR/Phyalca
Card 1/1
Authors : EtkInj, V. S.
Title : Scientific demonstration of W-oucillations
Periodical : Vap. Piz. Nauk, 52., PA. 2.o 311 31/5. -_-)54
Abstract Report deacrIbee an arrangement~for scientific demonstration of fro-
quency modulated oscillations. The arrangement uses the method of
changing the circuit parameter (inductance) based on the nonlinearity
of the iron nagnetization curve and changes In the coefficient of
mutual inductance of the connected circuits. The generator is assembled
in accordance with a three-point system with the center point.in the
capacitive circuit. The circuit coil is inductivelT conneoted with the
modulating coil fed by a technical frequency current of 50 c. Change
in depth.of modulation is attained with rheostat P,, and displacement
of coils over the entire Iron core which represento a clooea circuit.
Drawings of the arr=gement are included. Graphs.
Institution .......
Submitted . . . . . .4
IN, 1". _s
ETKIN, V.S.
Modulation of carriers by means of a change in the magnetic perme-
ability of ferromagnetic conductors. Radiotekh. i elektron. 2 no.4:
506-507 AP '57. (KLRA 10:9)
(Radio. Shortwaye)
nd Fliy. Lh ~'c (,r _-07 1 pCI
I q
surf=cc ('I'fr,ct
Inqt i.! V.-1. L,,miji), DIC co i,-,, lid ::;z (10 Litic's)
06494
AUTHOR: Etkin, V.S. SOV/141-58-4-10/26
TITLE: App ication of the Controlled Surface Effect in
Modulation (0 primenenii upravlftyemogo , poverkhnostnogo
effekta dlya modulyataii)
PERIODICAL: Izvestlya vysshikh uchebnykh zavedeniy, Radiofizika,
19589 Nr 4, pp 95-99 (USSR)
ABSTRACT: First, the modulation of a UHF signal passing through
a half wave resonator containing a controlled impedance
is considered. The equivalent circuit of such a
modulation system is shown in Fig 1, where C I L and R
are the parameters of the resonator, while P P P
ZH is the input impedance of the load; the segment 1-2
represents the feeder line whose impedance is F .
The voltage at the points 2,2 is given by (Ref 11):
U 2ZpUn (1)
zp + P (I+ %1)
where Un is the amplitude of the incident wave at the
Card 1/3 points 2,2 and Z 9 is the impedance of the resonator.
06494
sov/141-58-4-10/26
Application of the Controlled Surface Effect in Modulation
U2 can approximately be expressed by Eq (3), provided
the conditions of Eq (2) are fulfilled. In the
resonator concerned, the imped nee ZP in the vicinity
of the resonance can be expres:ed byt
ZP = R -o 1r; (4)
The system can, therefore, be employed as a modulator
and its modulation index is expressed by Eq (5). This
relationship was investigated experimentally in
2 resonators; one of these was in the form of a
coaxial line in which the inner conductor was made of
a ferrite material (permalloy); the second resonator
was in the form of a two-conductor line in which both
conductors were made of permalloy. The results taken
at a field of 18 Oe are shown in the table on p 97 and
in the oscillograms of Fig 2. The modulation
sensitivity of these systems, that is the ratio of the
modulation attenuation to the magnitude of the modulation
Card 2/3 field,is indicated in Table 2, p 98. The author
06494
sov/14i-58-4-1o/26
Application of the Controlled Surface Effect in Modulation
investigated also a parametrIc-type modulation in
oscillators where the amplitude was non-linearly
controlled by changing a parameter (Ref 12). It was
found that in this case it was possible to obtain very
high modulation levels, such as would not be obtained
with the resonator-type modulators. The author makes
acknowledgment to N.N.Malov for suggesting the subject
and for directing this work. There are 2 figures.
2 tables and 13 references, 6 of which are English and
7 Soviet, one of the Soviet references being translated
from English.
ASSOCIATION: Moskovskly pedagogleheekly InstItut imenl V.I.Lenina
(Moscow Pedagogical Institute imeni V.I.Lenin)
SUBMII'TED; 25th November 1957
Card 3/3
SOV-109-3-6-18/27
AUTHOR: 9-tkinp,
TITLE: Phase Modulation during the Reflection of Waves from a
Complex- Load having the Form of a Low-Frequency Detector
(Fazovaya modulyatsiya pri otrazhenii voln ot kompleksnoy
upravlyayemoy nagruzki v volnovode v vide nizkochastotnogo
detektora)
PERIODICAL: Radiotekhnika i Elektronika, 1958, Vol 3, Vr 61
PP 834-835 (USSR)
ABSTRACT: If a transmission line is terminated with an imperfectly
matched load the phase and the modulus of the reflection
coefficient in the line can be varied by changing the load.
In this way it is possible to construct a phase r-odulator
(see Fig.1). The modulator described was built from a stan-
dard detector head containing a diode type DG-Tsl. The mod-
ulation was achieved by varying the biasing current of the
diode. The measured results, taken by means of the equip-
ment shown in Fig.2, are plotted in Fig-3, where the phase
9 and the standing wave ratio (KCB) are plotted as a
function of the modulating current. The work was carried
out under the direction of Prof. N. N. Malov. The paper
Card 1/2
SOV-109-3-6-18/27
Phase Modulation During the Reflection of Waves from a Complex
Load having the Form of a Low-Frequency Detector
contains 3 figures and 2 Soviet references.
ASSOCIATION: Moskovskiy gosudarstvennyy pedagogicheskiy institut
im. V. I. Lenina (Moscow State Pedagogical Institute im.
V. I. iienin)
SUBMITTED: November 14, 1957.
1. Waves - Reflection 2. Phase.modulations - Applications
Card 2/2 3. TranaMiadion linee - Applications
108-13- 3-11113
AUTHOR: Etkin
TITLE: The Use of Controlled Surface Effect in Modulation
(Primeneniye upravlyayemocl~o poverkhriostno,,o effekta dlya
modulyatsii)
PERIODICAL: Radiotekhnika, 1958, Vol- 13, Nr 3, pp. 66 - 69 (USSR)
AB3TRACT: Various co-vibration systems with ferromagnetic elements
in forced as well as in self-excited oscillations are in-
vestigated as modulators. The experiments were carried
out with iron# steel, and permalloy (alloy aouc). These
showed that permalloy was the most sensitive. Mainly thin
lines were used. The modulation was caused by the muni-
cipal line-current. - The data for the maximum amplitudes
of modulation with forced oscillations in various systems
and at various frequencies, as well as the minimum ampli-
tude of the same field on the surface on the same condi-
tions for various line diameters are given. The minimum
amplitudesare connected with heat effects. Therefore these
minima are unequal because of their different cooling con-
Card 1/2 ditions. It is shown that in forced oscillations it is
.The Use of Controlled Surface Effect in Modulation
100-13-3-8/13
difficult to obtain a very low modulation. The experiments
showed that it is possible to produce a self-excitation
system with a controlled ferro-iaagnetic element with which
there is possible a deep modulation up to a pulse modulation.
The experiments showed that in this the magnitude of the
circuit resistance is of decisive influence. The experiments
carried out for this purpose with the generator are described.
The permalloy samples were supplied by the IPS T911IChM.
Professor N. N. Malov posed the problem and directed the
work. There are 2 figures, 1 table, and 3 references, 3 of
which are Soviet.
SUBTAITTEDi November 28, 1956 (initially) and July 1, 1957 (after revision)
Card 2/2
SOV/58-59-8-i8582
Translated from: Referativnyy Zhurnal Fizika, 1959, Nr 8, p 222 (USSR)
AUTHOR: Etkin,-V-Z,--
TITLE, Some Properties of Metallic Non-Homogeneities on the Surface of Di-
electric Tubes
PERIODICAL: Uch. zap. Mask. gas. ped. in-ta, 1958, Vol 138, pp 165-169
ABSTRACT: It is experimentally demonstrated that it is possible to rotate the
plane of polarization by means of sections of circular tubular
dielectric waveguides having metallic non-homogeneities on their
surface. The experimental set-up is similar to one previously
described in the literature (RZhFiz, 1954, Nr 1, 960). Strips of tin
fail were used as non-homogeneities, that were parallel to the axis
of the waveguide or wound around it in a spiral in half-turn and quarter-
turn lengths. In every case a rotation of the plane of polarization and
the appearance of elliptical polarization are observed. Diagrams are
presented showing the turn of the plane of polarization and the variabili-
ty of ellipticity as functions of the parameters of the non-homogeneities
and their orientation.
Card 1/1 I.F. Dobrovollskiy
SOV/58-59-9-20911
Translation from: Referativnyy Zhurnal Fizika, 1959, Nr 9, p 210 (USSR)
AUTHOR: Etkin, V.S.
TITLE- Some Questions of Modulation by Means of the Surface Effect
PERIODICAL: Uch. zap. Mosk. gos, ped. in-ta, 1958, Vol 138, pp 171 - 183
ABSTRACT: The author makes a theoretical study of the operating characteristics
of v h f - modulators which utilize ferromagnetic conductors. He pro-
vides experimental data concerning the magnetic properties of some ferro-
magnetic conductors at v h f. He considers the question of adopting the
above-mentioned modulators for the modulation of the oscillations of
self-oscillators. He makes a theoretical and experimental study of the
conditions of maximum sensitivity of the self-oscillator to a variation
in the parameter, as well as the conditions assuring modulation linearity.
Cf also RZhFiz, 1958, Nr 2, 14091; Nr 11, 25807.
Yu.B. Chernyak
Card 1/1
S/141/59/002/05/025/026
AUTHORS- Gershenzon, Ye.M and Etkii V �~92/E382
TITLE: Parametric Regeneration at Microwaves iii a Semicondtictor
DiodeA
PERIODICAL: Izvestiya
1959, Vol 2,
vysshikh uchebnykh zavedeniy, Radiofizika,
Nr 5, pp 835 - 836 (USSR)
ABSTRACT: The authors have observed the parametric regeneration
in various samples of mass-produced detector diodes,
type DGS-3, and also in microwave junction-type diodes
prepared by the IRE AN SSSR (Institute of Radio-electronics
of the Ac.Sc.1 USSR). The experimental equipment (shown
In Figure U consisted of:
1 - a klystron generator operating at a wavelength of
7 cm;
2 - attenuators;
3 - a resonant circuit with a variable capacitance;
4 - a klystron generator producing the pump frequency
(wavelength of 3.5 cm);
5 an impedance transformer;
6 a filter suppressing the pump frequency signal;
Cardl/2 7 an oscillograph. V r
68561
S/141/59/002/05/025/o26
Elqg~EJ8
Parametric Regeneration at Microwaves in a )n conductor Diode
A resonant circuit was in the form of a waveguide section
fitted with two plungers and two perpendicular waveguides
feeding the pump power. The investigated diode D was
situated in the centre of the waveguide 11crossit and
operated under the self-bias conditions. With the diode
DGS-3 it was possible to obtain amplification of the
order of 2 to 3 db. The diodes of the IRE AN SSSR gave
a gain of 12-15 db over the bandifidth of 2 Mc/s. The
authors make acknowledgment to the IRE AN SSSR for
supplying the samples of the diodes and to N.N. Malov
and N.V. Alek5androv for advice during the experiments.
There are 2 figures and 4 references, 2 of which are
English and 2 Soviet.
ASSOCIATION: Moskovskiy pedagogicheskiy institut im. B.I. Lenina
(Moscow-Pedaxogical Institute imeni V.I. Lenin)
SUBMITTED: First - April 4, 1959
Card 2/2 After revision - June 8, 1959 VK
q3 44
"
', 19/002/06/W9/02*
3/1
ALMHORS, AI.k...d- N.V.. 2
TrTLZ-. Control of the Amplitude and Ph... of .. El-
~.m
i
_
- -
Me- of G-1- Pl.'.
P2JLXODICAL: Alostiya vysshikh uchobnylLh -ved,aiy. R~diofisx".
1959, Vol 2. Xr 6. pp 911 - 914. (USSkj
ABSTRACT. Lp.r-t. are ond.-t.4 - ph... -1 aali%~d.
'sodu"ttom of an, elactromagmetit w,v* Lm,-I~t - a
the
v veSulde by -atral
i rr harge carriers in tki,
The concentration or free-cha~g* carrier# ~h-;- 1.11
Par.ittirxty at the .-L.-d-tor, th.- I.fl.-.9 the
absorption of ej~tr~gnetjc va,ve. " the s-cQz4-,r.
,.dbY
th.
The control *
f concentratioa
--9
a
cbi
,
,
,
s
.
,r i:
I rr act h ..t .1-t-
,
x
i
L.. on posits b-
f
t'
H
~
f
r.c-bL-
t
L
f
p
5 - 140
:
n
z
&at.... (3
A
c:
; ant~.y-ljcy.4
fr-.h. y:%ar-ars
-anium sea -4. C-.Jq.tr.ti.3 or
^pr*"-tl-, 10 par
IC-dVI
currami,
pproxissately 16. ay var-yiAx the elsotri-I
throuSh the germanium plate. botft th m,odulm^
s
-d the pheas a rthe reflection coerfLciaot. as wezi as
the &"
-d- - -
P-1
1
X
b
V.:. be .
C.!
- "' L. c L&IL.
6
: t
1.
r wb4.9
-r -tarij d
p..4. up.. the 7-..
:
-lareal L c-,..% at . A.,-
nX'r..t A, :
frwqu*ucy Semarstor and a pulse
d%:
.
;
-.4 goal source.. )wdulec,i..
d
L
.
.t of tb
,'.d f
p-d
p
It.&. up to o
j
..
;ic
3
P. . . If .-I or the
i
:
c- be Lac-A.4 c.-Id.r.bly by -r
ar
f
.f the P"t
A-f
;
,
increass th it ;!_. . be
: c
o
..'ec.....". rat -f&. Th
:: th
r* -.
:.
:
s
% f.r-
:
.
&M,4 11 reference.. 6 of Utcb %L. I Q - L
-d
C-d2/3
ASSOC ZA-10%,.= k-k V.I- L-Lue,
BLTI?UrrtD: June 1939
C-d 3/3
32921
S/194/61/000/011/056/070
D271/D302
MTHOLLS: Bogatko%ln, O.M., Gershenzon, Ye.11., Dombrowkaya,
T I'LlAsyna, N.G., Rozhkova, G.I., Sperantov,
TITLE: Singlc-circuit regenerative and super-regencrative
parametric amplifiers with semiconductor diodes.
PERIODICAL: Referativnyy zhurnal. Avtomatil-a i rarlioclektronika,
no. 11, 1961, 12, abstract 11 K91 (V sb. Poluprovod-
nik. pribory I ikh primeneniye, no. 6, 11., Sov. ra-
dio, 1960, 41-62)
TEXT: Theoretical and experimental results are given of a
study of single-circuit regenerative and super-regenerative para-
metric amplifiers with semiconductor diodes. The amplifier foz-aard
and reflex operation in a synchronous and biharmonic mode is consid-
ered. Results of the investigation into noise parametern of the
diode tire given. Experiments confirmed the analytical reinilts. It
Card 1/2
32921
S/ 1. 94/61/000/011/05 6/0 70
Sini, I C-circuit ... D27L/1)302
is shmm that super-regenerative operation lcods to consicicrable
distortions of tile received signal spectrun, but on tile other hand
it mahea it possible to widen the amAificr batidwidth and to achieve-
greater stabilization of gain. 8 references. Z--istracter'r i
Complite translation-7 te
Card 212
28788
S/106/61/000/006/004/005
0 11SY A055/A127
ALrrHORS. Aleksandrov, N. V., Gershenzon, E. M. and Etkin, V. S.
TITLE: Regenerative low-noise microwave amplifiers.
PERIODICAL: Elektrosvyaz', no. 6, 1961, 31 - 37
TEXT. The authors derive generalized formulae giving the amplifi,~ation
factor, passband and the noise factor of resonator-type regenerative microwave
amplifiers. The elements of the total resistance type are called by tile authors
regenerative elements with negative effective resistance (Ref. FJ.. - R.), while
the elements of the total-conductance type are called regenerative elements with
negative effective conductance (Reg. El. - G_). Figure 2a Is the equivalent cir-
cuit of an active Reg. El. - R_ Rc is the loss resistance of the element; Xc
itz reactance; R_ the negative resistance created by the element in the circuit.
Figure 2b iZ the equivalent circuit of the resonator-type regenerative pa~zsage-
-coupled amplifter, and Figure 2 a the equivalent circuit of the reflection-poup-
led amolifier; X = Xcirc + Xcj Re is the loss resistance in the amplifier circuit
and Z,,) is the wave impedance of the feeding line. Figure 3a is the equivalent
cir,:jjit of Reg.El, - G . GC is the loss conductance of the element; B c t':~ reac -
card I/10 blk<
28788
3/106/61/000/006/OC)1/005
Regenerative low-noise microwave amplifiers AC555/A127
t.~vs conductance, G the negative conductance created by the element in the cir-
clji+. Figure 3b is the equivalent circuit of the passage-coupled amplifier and
Figure 3C of the reflection-coupled amplifier. Basic fortmalae for the ampllfi,~:l
tlor) factor and the nolsj~ factnr. The ampItfication factor of an passarzt-CO'lolea
_Pr outu'P, to thA
amollfter Is aet.p.rmined as the ratio of the power at, the amplifl
po-r given up by the signal source to a matched load, Thl!: 1?Jt.-r vower
0
4R d
E being the RMS of the emf~ On tile other hand-,
E2 R 0-
0 Out'p -(R )2
and, th#~refore:
P outp_ 4 R dR /I-
K = -c -
cc (R - R_.)
Card 2/11
28788
S/106/61/000/006/0011/005
Regenerative Low-noise microwave amplifiers Ao55,/AI27
where R - Re + Rk + R + RH . In the case of reflection-coupled amplifiers, the
amplification factor Is the ratio of the reflected wave power to the incident.
power, (i.e., the reflection factor):
K Pre lect. (6)
P
inc
U2 U2
c
Since P -
P .-reflect
Z
and U
- z0IHI
t U
fl
ine reflect O re
ec
inc
2
Z
1
2
U
reflect O
H
K = 1 1 1 (7)
U2 Uinc
ine
Taking into accoun t;
the equivalent circuits (Figure 22 2nd 3), the aut.hors obt.aln-
2Z01H 2 4 z0 1 H
K I - -E i.e., for
1 Kj~~'l K
Card 3/11
S/ I X/V/OOO/OC6/rjO4 /005
Regenerative low-nolse microwave amplifiers AC55/AI27
or 4 z
K 0 (91)
(R R-) 2
where R = Z + R~+ Rol 1. - E Tb,~- pas-:;-barid of the amplifi.ei- I-s det.#-r-
0 H R - R
mined by th~-. q-factor of '-,he 5ySte-M.
'N f I
__. . - = WC(R - R (10)
f Qp
In the case of passage-coupled ampliflers-.
C
fV~ 2V R~R 2 If R A.
d H OOC d 14
27c -VLC (n)
RdR,p_ r T 7R
d
'Ir L
r qUP
I C, C =I[L
Whe" C is the characteristic impsdaznoe of the clrcuiT
Ca rd. 4/ 11
28788
s/1o6/61/0oo/oo6/oo4/005
Regenerative low-noise microwave amplifiers Ao55/AI27
if RK -n~ RH' R --' R 'z: 1/2 ~-' then-kFK R LJC C. (12)
d H f
In the case of reflection-coupled amplifiers
TK &-f - 2 Z,, w . C (13)
f
or (since usually Z 077 Rk and hence R-^-,:' Z 0
TK 4f = 2 ji cj() C. (14)
f
The noise factor is expressed by:
F Pn outp (15)
K Pn inp
Pn outp being the noise power at the amplifier output, and Pn inv the noise power
at the amplifier input, i.e., the power given up by the noise source with inter-
nal resistance Rd and temperature To (To~~', 2901K) to the matched load. The noise
emf operating in the circuit are:
Card 5/ 11
2 8 78 8
s/lo6/61/000/006/004/005
Regenerative low-noise microwave amplifiers A055/AI27
1) the noise emf of the signal source: -2 = 4 KTO Rd Af (16),
nd
2) the thermal noise emf produced in R ~2 4 KT (17)
k nk = k RO"
3) the thermal noise emf produced in Rc E. nc =4 KT C R C-,Nf, (18)
4) the thermal noise emf produced in R H EnH = 4 KT 11R H' 'f' (19)
Besides, sources of non-thermal noises may exist in the amplifier, whf~~h Call be
represented as sources of additional noises with resistance Rc and temperature
T-,gt
E2 = 4 KT R _~f (20)
ng cg c
Considpring the noises as non-correlated, the authors obtain, in the case of
passage-coupled amplifiers
T R R TKRKR /k T P R THRHR T R
0 d A + c c ~G cec ;'V_
Pn outp = 4 K&f I (R R ) 2 ' (R R )2+ 2 R ) 21
(R - R_ (R - R_) (R
and P n inp - Wr06f, so that: Llk~
Card 6/ 11
'28 7 8 8
S/106/61/000/006/004/cO5
Regenerative low-noise microwave amplifiers A055/A127
1 + R k Tk .4. RLk + 'cTcg
F - (21)
passage R d T0 RdTO RJO
In the case of reflection-coupled amplifiers, they obtain In an analogous manner:
RkTk R T R Tdd
F I + - + ' C + (22)
reflect 0 R
RdT A Pld TO
It ensues from (21) and (22) that the reflection-coupled amplifier is character-
ized by a smaller noise factor than the passage-coupled amplifier. To obtain the
minimum noise factor, there must be a strong mismatch between amplifier and sig-,
nal generator:
R Rd R k4 R d; RH4-R d
To obtain a high amplification, it is necessary that:
(23)
R AZ~/ R. (24)
The use of a ferrite eircu]Atjw ensures a smaller noise factor and a greater stabi-
lity of the whole system. In parametric amplifiers, the noise factor is somewhat
greater In both cases. For parallel circults, the bagle formulae are analogous
Card 7/11
28788
s/io6/6i/0oc,/oo6/Oo4/005
Regenerative low-noise microwave amplifiers AG55/A127
to the preceding onest
K 4 Gd GA
passage (G G-)2
whr-re G = Gd + G ..K4- GC., + GH' 4V2
K (C 0
wheTe G - yo + G k + G
G T OCITO 0
+ + c
F -I- +
passagp G T G T`
d 0 d 0 av. C 0
GkTk rxCTe G0TCg (26)
Fref 15cf. I + -7 + +
~FdT 0
Card 8/11
00/006/004/005
3/106 61/0
Regetic-rattve low-noise -microwave amplifiers Ao55/AI27
The condition for high amplification is:
G 2', 0
The condition for low noise Is:
K d
G H Gd
G c< G d
To ensure low-noise, the regl~nerative
tisfy the conditions:
eg 0
GKZ~ Y 0 (208)
Gc e47 Y0
elements of the microwave circuits must sa-
~_ 5- R0 G_:~~ Gc (2Q)
There are 3 figures and 7 references, 5 Soviet-bloc and 2 non-Soviet-bloc. The
references to two English-language publications read as follows, Kr8mer. Thq
Card 9/ 11.
28788
s/io6/6 i /or-,o/0()n/004 /0,0;~i
Regenerative low-noise microwave amplifiers A055/AI2'(
pbysicsl principles of a Negative mass amplifier. Proc. IRE, lr~.69, v,.)i. 47, No.`k.
2) 3ard. Tunn-31 (Esakl)diode arnplif iers with unu~31.ially I wrge band-widtllli.~ -. Pr:.,-
IRE, ig6o, vci~ 48, No, 1.
SUBMITTED,, MaTc-h. 3, 1961
[Abst--icter's notf- jl'h~ following _qjb_czrIpts &re f-n3.n,1&!,ed in fc~rrru..!3~ ind f-ejl.-
reflecJ;_ is thr- tran~Latton of oryip ; pa,?sagr- is the- trsnslation of f1p lnl~. fl.n-
cidert), is the translation ofnzR; n (noise'! 16 the trar-illal,tcn O~LAL out,p.
the tran~laticn of Bbix ; inp. is the tran~_Ia~.i,-:in of bx ; d r-plac&s
LX
Ca.rd 10/11
s/14i/6i/oo4/001/010/022
E192/E38z
AUTHORS- Gershenzon, Ye#M., LVgbimova, T.F,., Ptitsyna, N.G:,
Rozhkova, Gel* and Etkin, V.S.
TITLE: Investigation of t~-'S;:~Su~per-regenerative Regime in
Singlcr-tuned Parametric Amplifiers
PERIODICAL% lz~estiya vymshikh uchabnykh zavedoniy,,%
' Radiofizika, 1961, VoI4 4, Noel, po. 113 - 120
TEXT: The super-regenerative regime in Parametric amplifiers
can be ac,hieved by additionally introducing -low-frequency
modulation of the variable-capacity-in the system (Ref. 1 ;- I
Hoffner, H., Wade, G.' and Junger, M. - Proc. IRE, 47, 1971, 1959;
Ref. 2 - B. Bossard -'Proc. IRE, 47, 1970, 1959). If this I a o.
regime in the amplifier is achieved by a comparatively slow.
modulation of the pump signal, the oscillations in a series
LCR circuit of the system can be'described'by:
L ~2j_ + R&I + q, (I +jjjjj+hcos(wt)j
dt' wt- U
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Investigation of thit IM9 E192/B382
where w. is th~ signal frequency,.
WH is the modulation frequencyt
M is the mean modulation depth of the nonlinear.
capacitance, and
h is th ei depth of the low-frequency pump-source
modulation. I
Eq. (1) can also'be written as:
~+28~ + (1'+2it,)y+ lily j1+hcos(Q-c)jsW-(2-t)-vXcos (2*)
where: Y Eofii,,, 20 - 1?/-.)d L; 2-)ui-. I + *%0;
(2a)
+ 2; w.,t/2; too
In the analysis ~f this equation it is assumo that 40* *Z~ 0
and that the sysiem can be solved by the Van_~er-Pol equation,-
Card 2/8
Investigation of tht$959--
which is in the form:
s/141/6,i/oWooi/010/022
E192/r,382
Y= &sin= +bcos"C
where a and b are slowly varying time functions.
Consequently, the system of simplified equations for-the
amplifier (Ref. 3 the authors - Radio-engineering
industry,- 17,'3,71959), can.be written.aist
2it cos 0- 28 + if COS (2-);
2 2 0)
It
s In (Zt -20 -22 b':-2 b cos (Q-),
whichdiffers from those obtained in Ref- 3 by the presence of.
the last torms,which'are due to 'the diodulation. It can be
assumed that the-solution of the simplified equations is in
the form:
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1 25950. s/l41/6l/oo4/ooi/0l0/022
Investigation of the .... B192/E382
v I A,,,v slij 1~1 + NO) 51 +A2.V CON I (E -F Nil)
..j I
X
b [B,,,s1ti I (i + Nil) - - '1~1 + B2
where AIN A2N B IN and B 2N are constant coefficients.
These constants can be determined from an infinite system
of algebraic equations which are obtained by substituting
Eqs. (4) into Rqs. (;). However, iti practice, it is sufficient-
toconsid 'er only a finite N , so that the nwnber of equatio'las
is reduced, By analysing the solutions obtained on the basis
of EqB. (4), it is concluded that:
1) the amplification! bandwidth in the Buper-regenerative
regime is greater than that'in the ri3generative regime for the
same maximum amplification coefficient, and
2) at w~. = w'12 +~Nw the amplitude of*th.e oscillations
H M
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Investigation of the .... P.192/E382
of the signal frequency and other frequency components
achieves a maximum, th4 maximum being most pronounced it the
component w c + Nwm which coincides with w H/2 . The
oscillations in the super-regenerative amplifier have a complex
spectrum and two types of frequency characteristics are possible:
a) the overall value of the oscillations excited is regarded
as the response of the system and thus the corresponding
frequency characteristic can be observed if the amplifier is
followed by a video detector;
b) the amplitude of the oscillations having a frequency of
the input signal, or that of one of the spectral components, is
regarded as the response of the system; in this case the
characteristic can be determined if the amplifier is followed
by a filter or a superheterodyne receiver having a narrow
bandwidth. These effects are illustrated by families of
frequency characteristic slof the two types which are given in
Figs. I and 2. The characteristics of Fig. 1 wir: evaluated for
(9 = 0.021, m = 0.08, n . 0.047, _g-j = 6 x 10- nd h = 100%;
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Investigation of the .... E192/2382
the parameters for Fig, 2 were 0.021, m = 0.08,
n = 0.047, Sj= 0.25 x 10 and h = 0.75%- From these figures
it is seen that the magnitude of the secondary maxima in the
super-regenerator-filter system decays faster than in the
super-rogenerator-video detector system. The super-regenerative
amplifier was investigated experimentally at comparatively,low
frequencies (1-3 We) and at UHF. The amplifier for 1-3 Mc/s
was studied by employing a sweep-frequency generator and a
superheterodyne receiver. Investigation of the UHF amplifiers
was performed by means of a spectrum analyser. The measured
results are in qualitative agreement with the calculated data.
In particular, the measured characteristics show that in the
case when the modulation frequency w is greater than the
M
bandwidth of the amplifier, the frequency response of the system
has a large number of narrowly-spaced peaks (comb-like response).
The authors express their gratitude to Yu.Ye. D'yakov for
discussing the problems of this work.
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Investigation of the E192/r..382
There arc 7 figures and 6 references: 4 Soviet and 2 non-
Soviet (quoted in text).
imeV*I*L
ASSOCIATION: Dlookovskiy pedagogicheakiy institut enina
(Moscow Pedagogical Institute im. V.1. Lenin)
SUBMITTED: July 7, 196o
Fig. 1:
(Air
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r7 25951 *
E033'/r,4~5
AUTHORS: Gershenzon, Ye.M., D'yakov, Yu.Ye., Soina, N.V.,f
Smirnova, L.A. and Etkin, V.S.
TITLE: Widening the passband of parametric amplifiers with the
'help of coupled c4r cuits
PERIODICAL: Xzvestiya vyashikh uchebnykh zavedeniy, Radiofizikaj,
1961, vol.4, No.1, pp.121-125
TEXT: The relatively narrow frequency pass~and of tuned
parametric amplifiers is not a fundamental diefleiency and can b&
overcome by the use of coupled tuned circuits, This article
in-vestisates the possibility of widening.the passband ~y two
coupled circuits, The amplifier in represented as two identical
coupled circuits tuned to the same frequency wo~ but the capacity
of one circuit is varied at a fre*qquency wH w2o)o. The
differential equations for such a driven oscillatory circuit may
be written as d"il, d + -/44.
+ 2/i!!Y. q U118 I I + mcost-11 t] T,e
tFli- dt dt'
d'q dy, LP 11
1+
Card 1/5 dt' dt 40
259% S/141/61/004/001/011/022
Widening the passband ... B-033/E'135
8
where M/L - the coupling coefficient; 2h = R/L; w2 -'l/LCO;
0
L, R being the self-inductance and resistance of each circuit,
M the mutual inductance, CO the constant capacity of the tuned'
circuit. The variable capacity Cl is related to Co by
CI-1 - C-1 U + m cos wlq t). The solution depends on the degree of
0
coupling. It is shown 'ihat: 1) if the coupling is less than, or
equal to, critical (H = IQ 41) then the amplifier is excited only
at the frequency wH/2 and the critical modulation depth increases
(1 + x2) times in comparison with a single tuned circuit;
2) if the coupling is greater than critical (x a IQ> 1) then the
amplifier is excited at three frequencies: /2 W and w3
2
2 w1w2 'W3
which correspond to detuning al = + %/K and are
approximately the same as for the frequencies of the normal
oscillatory system), As far as the passband widening is concern
only the first case, when x