SCIENTIFIC ABSTRACT ZELENIN, YE.V. - ZELENKA, J.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001964220020-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 15, 2001
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

mV
-ICH
~Mk(~klfflVSKIT. B.A., redaktor; TUHARKINA. N.A..
e' t
~ty: red%ak or
[Mechanical drawing] Cherchenie. Moskva. Gos.tzd-vo tekhniko-
tooret.lit-ry. 1957. 388 P. (KIRA 10:9)
(Keehanicar drawing)

ZEMIN, Yoygenly-y~#41miroyich- RODIOPOVA, Z.A., rod.: NEVSKIY, B.A.,
V ZU-4-=P -
-rs&.;--SMIRxO tekbn.red.
(Menhanical dr Ing In fiecondary schools; a manual for drawing
law
teachers] Ohorohonie v aradnoi shkole; v pomonhohl uohitelAu
chercheniia. Moskva, Gos.uchebno-pedpgog.izd-vo H-va proov.RBFSR,
1957. 510 P. (MIRA 11;1)
(Mechanical drawing-Study and teaching)
._77
'~,MWIP~'33AMtM

Ai qy-
ZELENIN, Yevgenly Vladimirovic,h; LAPKO:, A.F,, red.; RYVKIN, A.Z.,
[F,jojtontai.f manufil an mechanicitl, drawing] Elementarnyi
uprovochnik po cherchwiliu. Moskva, Fimitgis) 1963, 254 p.
(MIRA 16tlO)
(Meohanical drrvding)

VIENINA, Yo.V, VOLODIN V,I..,g ANITONIT, B.I., red.
(Machinery for the coal industry] I-lashiny dila ugollnol
prorqshlennosti. Iloskva, Nedra, 1964. 299 p.
(MIRA 17:12)

mElinj yu. 11. (Co-autlior)
Seer TLEVAKO, Ye. A.
Plevako, Ye. A. and Zelenin, Yu. N. "Growing yeats in concen-
a
trated m2shes," Pishch. prom-st' SSSR, Issue 22, 1949, p. 3-5
SO- U-3566, 15 march 53) (LotoDiE 'Zhunnal In- K Statey, No. 14, 1949).

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- ----- ---- ------
FOLOZOVA, Ye.V.) promyshlenno-sanitarnyy vrach;-KAMALOVj A.K.;
ZELENINA) D.N., promyshlennyy laborant
I~dustrialnoise in factories. Tekst.prom. 21 no.9.-77 S 161.
(MIRA 14:10)
1O.Glavnyy vrach medoanchasti Tashkentokogo tekstilinrgo.kombinata
(for Xwmlov).
(Noise) (Industrial hygiene)

zm
HAZAROV, F.V,,, inshanar- ZMANTIMl 10.6.
Confer"nce of heavy-mchinery Industrial designers. Kanhinostroltell
no.2:41-42 F '57. (Machinary-Design) (MLRA 10:5)

20 USSR (600)
10 Wine and Wine making
7. Effect of alcohol concentration on activity of yeast. Vin. SSSR 12, No. 12,
1952.
No kW 2X Lusain Accesslonp,._ Library of Congress, FgbMM 1953. Unclassified

0.), zgj.~isp~~ KOMMA (Unto 0. A.).
so's
a 6MV=d Sh rAVOM COM. [MMS of di4ca~ an
the weight am quality d 00clul-rc Pro. 14mirjr., 1930. 10,
pp. 148 149.100,
The sulhom itato that lolimitmry dele"Itinotibitm have s1hilwn thak
per vent. O(tobacoo pkntd infoew st nk "fly OAP by mosslo fall
40
to pmlum *uy sec4, the yieM ol! the rm~lvg 10 pot ceoL Wag Im
than 25 PCV OCUL Of the UUnVA; kkC WMIUVA rMult In a analler
AI
00.4 reduction of tho yielif of W.ML It w" further fausul that tho rivid of
Oew plants si-Orthig froin hollow stalk [Badllom an4dow. P. 121;
so xv, p. 346) im rvduoM by 01 kjr cvnt,, (met powdery mildow Isrpi*
cirAonwmrmmj by 15 per omt, wW from ving PjxA jilM., xv, p.'7041
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1-1-o
T, 31101:
-AC-C NR. - A
F60265jj SOURCE CODE R 01~V66166616 5 0059
AUTHOR: Kreshkov, A. P,; Yarovenko, Ap No Zelenina, L* No
ORG: none
TITLE: Swelling and abso rption capacity of ion-exchan e resins in nonaqueous media
SOURCE: Plauticheakiye msayt no, 2, 19661 57-59
TOPIC TAGS: nonaqueous solution, ion exchange resin, methanol, acetone, temperature
dependence, cation, anion exchange resin, titrimetry
ABSTRACT: The OW011ing and exchange capacily of ion-oxohango resina'(tho.-
strongly acidio cation-oxchango rosin_�PY-jLin the H-form and the strongly.,
basic anion-oxchange rosin AV-17 in the Cl-form) were studied in nonaquoous
solvonts at various temperatures. The temperature depondonco. of tho swelling'
of the ion~-oxchange rosins in methanol modium was characterized by a convex
curve with a maximum corresponding to 160C; it depended on many factors,
including the individual properties of the resin and solvent. Tho process
.of swelling was accompanied by diffusion and adsorption of the solvent,.
which aro influenced oppositely by tomporature, The 6welling behavior was
also studied in acetone. The absorption' capacity oe the Ion-exohango rosins
was determined under dynamic conditions, retaining a constant rato of flow
In tho column, uniformly fiUod with-tho ion-oxchange rosin* The tomporaturo
depondenoo of tho absoiption capaoitio3 of tho cation ayd anion-oxc.hanj;o rosinb;
Card 1/2 UDC:---661:18-1.123-

ACC NR:
Yas found to differ; there was also a difference in the dependence of their
t~capacitioa on the uue3JAM. It was hypothuaizod that in the case of cation
hagp rosin
exohango the absorbed solvent in the pores of the swollon ion-exc n
fifiterforea with the penetration of cations to the active groups, the dynamic
~oxchango cajAcity thoroforo increasing vrIth inoroasing temperature and the
',Swelling dodoasing'L In the case of anion oxohango tho moloculos.of adsorbod
.solvent promote an increase in the rate of exchange. The exchange capacity of.
itho anion-oxchango rosin and its swelling roaoh a maximum at ZOOC. The
of the cation-oxolmngo rosin in nonaquooua modia was also studied by
.Potentiometric titrationg in which the cation-exchdngo rosin was found to
bohavo as a strong acid, with an exch9mgo.oapaoity of t7hree milligram,
equivalents per gram. Orig.-'a'rt'. has:- 5 figures and 1 table. IJPRS: 36,4551
SUB CODE: 07 SUBM UTE: none ORIG REF: 006 OTH REF: 006
Card2

DOMNIN, N,Ao; ZELENIM.- H.N.,,- GLER..OVSU~,TA# X,
Studies in the field*of polyzathyiene cycies', Part 2ft Investigation
of-the p'r'oducts-of reactione.-of-azatonylacatone with ~ydralne. Zhur.
ob. khim. 27 no.8.-2088-2093 Ag,157. (KIR& 10191
1. TeningriLd9kiygooud&rstvemWy univeraitet.
(Hexanscliond) (Hydragine)
..........

DOHNINg N.A.; MENINA M.H GLEBOVSKAYA, H.S.
Research in the field of polymethylene cycle. Part 2?: Reactions and
products of 1,4-cyclohazanedione and acetox7laaetone with hydrazine
and dimethylbydrazine. Zhur. ob. khim. 27 no.6:1516-1518 Je '57.
(RIBA 10:8)
1., Laningradakiy gosudarstvennyy universitat.
(Cyclohg~44qx~4)(Hydrazlne,), (Hexanedione)

4
81934
3/062J60/000/06/05/011
0 0 C" B0201B061
AUTHORSt Kiopachev, V. A. Dolgoplosk, B. A., Geller, N. M.,
Zolenina, M. Ni
TITLE: le-aWtrUn-s-Be-fw-ee-n-Ur-ygffo-metallic Compounds and Heavy Metal
Salts. II-Interaction of Lithium-ethyl With Cobalt and
Titanium Halides
PERIODICAL: Izvestiya Akademii nauk SSSR.' Otdeleniya khimicheskikh nauk,
.1960, No. 6,. pp. 1044 - 1048
TEXT: The reaction of ethyl-lithium with titanium tetrachloride and cobalt
chloride is examined here at 200 in hydrocarbon solvents and in the
presence of unsaturated hydrobarbonsias free-radicallacceptora. In the case
of radical stages, the said reaction cannot lead to the formation of ethane
and ethylene. Similarly, the reaction of organo-magnesium compounds with
metal halides was examined earlier (Ref. 12). All reactions were ourried
out in solutions (in benzene, metaxylol) at 200. In connection with the
fact that a-metlfylstyrenelpolymerizes under reaction conditions on the
Card 1/3
6/1

81934
Reactiona Betwoon Organo-raetallic Compounds and 5106216010001961051011
Heavy Metal Salts. II. Interaction of Lithium- B020/BO61
ethyl With Cobalt and Titanium Halides
(ICUOR of tho ~thyl-litDium and TiCl V the- it-mothylotyrono wag M,_,radually
introduced to the reaction mixture, thus maintaining a.sufficient quantity
of free olefin in the mixture at all times. The products of the reaction
of ethyl-lithium with cobalt chloride (Table 1) and with TiCl 4 (Table 2)
at 200 are given. On the reaction of ethyl-lithium with cob'alt chloridef
equimolar quantities of ethane and ethylene are liberated, whilst only
ethane is liberated when reacting with TiCl the ethylene being polymerized.
4 1'
The introduction of acceptors In no case affected the-oomposition of the
reaction.products. The performance of the experiments is exactly described
in the experimental part (Fig. 1, reaction vessel with mixer)# and hints
are given for carrying out the reaction of ethyl-lithium with TiCl 4 and
cobalt chloride. The results obtained show that the formation of ethane
and ethylene is not connected with radical interstages. There are I figure,
2tables, and 13 references: 4 Soviet, 7 USA, and 2 German.
Card 2/3

81934
Reactions Between Organo-metallic Compounds and S1062J6010001061051011
Heavy Metal Salts. II. Interaction of Lithium- B020/B061
ethyl With Cobalt and Titanium Halides
ASSOCIATIONs Institut vysokomo1eku1yarnykh soyedineniy Akademii nauk
SSSR (Institute of High-molecular Compounds of the Academy._
of Sciences USSR)
SUBMITTEDs Deoember 1p 1958
Card 3/3
AA k

VILENSKIYJ, N.M.; LATS, V.M.; ZELENINA., N.Ya.; SERGEYEVA, A.G.;
ZENOVAp N.N., red. M.Z., tekhn. red.
(Establishing an efficient diagram for the power supply
of a metallurgical combine] Opredelenie ratsionallnoi
ekhemy energoanabzheniia metallurgicheskogo kombinata.
Sverdlovsk, AN SSSR, 1963. 56 p. (MIRA 16:10)
(Iron and steel plants-Equipment and supplies)
,(Power engineering)

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5 (3)
..AUTHORS: Tinyakova, Ye. I., Dolgoplosk, B. A., SOV/79-23-7-61/83
-.,~eleninza, T. P.
TITLE: Redox Systems for the Initiation of Radical Processes (Okis-
litellno-vosstanoviteltnyye sistemy dlya initaiirovaniya
radikalinykh'protsessov). X. On the Mechanism of the Effect
of Redox Systems With the Participation of S02 (X. 0 mekhanizme
deystviya okielitellno-vosstanoviteltnykh sistem s uchastiyem
PERIODICAL: Zhurnal obahchey khimii, 1959, Vol 29, Nr 7, pp 2377 2381
(USSR)
.ABSTRACT: Sulfur dioxide, by reason of its dualityp may be used in redox
systems in combination with both oxidizing agents (peroxides,
hydroperoxides) and reducing agents (morcaptans, H,S, and di-
enols). As was shown bythe authors (Rafe 1,2) these systems
may be used to induce radical reactions in hydrocarbon media
(Refs 1,2). In the present paper experimental data is given
which makes.an interpretation of the mechanism of the effect
of the nbQvo systems possible. The reaction of isopropylben-
card 113 zenG-hydroperoxiao with 30 2 io axtromoly fact in hydroaaTbon

Redox Systems for the Initiation of Radical SOY/79-2,0-7-61/83
Processes. X. On the Mechanism of the Effect of
Redox Systems With the Participation of SO2
solutions and causes a rapid gel formation in rubber solutions.
This reaction is accompanied by the formation of polyoulfone
if styrene is used as a solvent. Nitrogen monoxide prevents
this prooess~ Analysis of the reaction products obtained with
and without 110 proved the reaction to prooeed via the radicals
(so3H), which react with the monomer to give sulfonic acid. It
was shown previously (Ref 2) that the reaction of trichloro-
thiophenol with SO2 produces a vulcanization of rubber at low
temperatures. Thus, this reaction leads to the formation of
unsaturated polymers. Its mechanism is that of a chain reac-
tion and the reaction proceeds accordingly, and is accompanied
by the addition of triohlorothiophenol and 50 2 to the unsatu-
rated polymer chain. 110 prevents this process. There are 3 tab-
les and 7 referencesi 4 of which are Soviet.
Card 2/3

Redox Systems for the Initiation of Radical SOV/79-29-7-61/83
Processes. X. On the Mechanism of the Effect of
Redox Systems With the Participation of 80
ASSOCIATION: Inatitut vyookomolokulyarnykh soyedinenly Akadoniii nauk SSSR
(Institute of High-Molecular Compounds of the Leademy of
Scienoenj USSR)
SUBMITTED: June 16, 1958

Gomm
ZELENINAP T.P.
Polarographic determination of cadmium and zinc in tellurium
sponge. Sbor.trud. VNIITSVETMET no.9:75-77 165. (MIRA 18:1.1)
~2 -,2
4

-~54
ZTNOVIYn,'t., L.tloq GLAPYSIEEVA, K.sl.~ Z~LFNINA, T.Pq
;iulfur ditermlnatii~n the uce o-: ir%n ezz;hange
Sbcr.trud, VNIUS-VETMET no,9tn8.,ll9 165.
wipu 188,11)
am

RA;" dotoxulmt"A of z1vic Iz o4aw"Un C=iAlrtll~o ir-,.torlao
sop&ratlon. Sbortrud. VLT-M-NLW=
no.9s320-323 1165* (MIA 18:31)
t'~ Plr~ rR

~ENINA, T.P.*, (ITLADYS `V,
rmining tin in tjmg2tan pI',:,duc':le 5bo..-.1'rf-v3;F
t
e A
no.9:12,1-126 161r.

7i-
GONCIJAROYA, H.N., professor; KRYSROVA, N.A...profesoor; MOMS. Z.A..
-doktor meditsinskikh nauk; LININ, I.K., kandidat neditslukM nauk;
GOLOVINSKAYA, N.Y.. iandidat meditsinskikh nauk; POLONSKIT, N.H.,
kaadidat maditainskikh nauk; GIOZOVA, Ye.l., kandidat me&itainskikh
nauk;,,,F.~~~ej,, kandidat meditsinskikh nauk
.Treatment of-ohildran with aftereffects of pollomVelitim. Vop.okh.
mat. i dot. I uo',1:43-52 Ja-l 156. (IGRA 919)
l..Iz Nauchno-iseledovattliskogo detakogo ortopedicheakogo
institute imeni G..I.ftiiera. Leningrad.
-(POLICKYELITIS)

ZEIIND"A ~-V---
Zeleninv, Yni. V., Kunf~vich, V. G., vrd Uflyand, YU. M. ''The- otatun of' tht rcce-,;tor
functions of childrtn aufftring fma., tht cono,~qvom'c*s of Poliomyelitis", SLOrrik
nauch. trudov (14-vo zdravooldirptomly4i PSFSR, lbi!np, rikuch,-iotil.~-d. in-t voostalovlnnly~l
trudoopoootnootl fiz. d~,fnktivnykh dc-tny Im. prof. Turni-ra), L,minrLr4id, 1(/)48j 1~-19-39-
SCI-* U !L 3042, 1.1 March 53, (L,--topis "Zhurnal "nykh St~atoy, No. 7, 194cl)

ZELE IIIIIA-- -YE. V
Zelenina, Ye. V. "Ch ronaximetric characteristics of muscles of children
in th6 acute pericd of policryelitis", Sbornik mpucb.
trudov (g-vo -.dravock1w.,inont
, ya RSFSH. Resp, nauch.-
isaled. in-t vosatanovleniya trudespoLiobnosti fiz.
defektiirnykh detey im/ prof. Turneva), Lenin,7,rd, 19/,8,
p. 81-98.
SOt U 3042, 11 March 53, (Letopis. 'Murnal Inykh Statey, No. 7, 19.4,9).
imm"

Clihical significance of the direct calibrated ballistwar-
diaqram, (acceleration".. speedv displacement) for the diagn.osiv-
o:r jporma:r7 insufftclenc7. Terap. arkh. 35 no,9s2/,--.Z6' Si~3
NIFA 1724)
1. 1z kafedry fakulltetakoy.torapii ( zav. 8.S. ~ozdnor) Ir-
kutskogo meditsinskogo instituta.

CHMMVSKIYIV M.., inzh.; ZELENI"P iri~h.'; GAMOV., L... inzh.; BURYUKOVICH., D...
Uzh; OVSEWKO B. ,. irl~h-
Mesh-reinforced concrete goes into production. Stroitell 8 no.5:5-6
MY 162 a (MIRA 15:7)
(Ilrecoat oonoreto)

JAROS, H. ZEMM, A.-
Homaplastic enrtilage cap in arthroplasty of the hip. Acta chir. orthop.
trnum. cach. 26 no.4:257-26o Aug 59.
1. 1. klinika pro ortopedickou chirurgii v Praze, vedouci prof. dr. M.
As
Janos.
(HIPS, BUrg.) (GARTUAGE, transpl.)
11 M. I WIF ------

3m Kamm
ZELEM, A.
Jkmoplastic cartilage cups In arthroplasty of the hip joint.
Ortopop travm,,i protem, 21 no.191-44 Ja 160,
(KIRA 13tU)
(HIP JOIRT-SURGERY) (GARTMAGE-TRANSPLANTATIoN)

Monthly list of East European Accessions (E-AI) I.C. Vol. 9 no. 2 Fe~b. 1960
Uncl, .

,:~FLLMU. Edusrd
' -F. tr
nfi -oi
s
7yr 13 'r'-j
Au
F~-aga llatt~r:fJ '--nti~rprlsa, d Kllemrta
Gottwalda, ~'Pague. T

4029Z
310811621000101,4101610
39
B16f/B144
AUTHOR: Zolenka. Vrantigek,.-
TITLE't The prodiiotion of noncaking and novhygroooopio ammonium
nitrato
t
PFMODIGAL: Refera*tivnyy-zhurnal. Khimiy4, no. 14, 1962, 377, abstract
14K47 (Czechoslovak Patent 98596, February 15, 1961)
TE;,XT,-. Al(011) is suspended in a concentrated solution of NH NO by mixing
3 4 3
Al (80~) and IIH OH., During the NH NO crystallization the su.bpen sion
2 4 3 4 .4 3
rclcelV)s an addition of K 'or Ila salts of the higher fatty acids, con-
tainini, sufficient C atoms in the chain > 12 for it to form 0.2-1.0fo of
the Al;salts of these fatty acids (when it become's the finished product).,,.
This qlantity of the Al salts confers a nonagglutinating property on the
crysta line NH NO powder. ~To.stabilize the suspension and the.final
4 3
product the quantity of NH OH introduced into the suspension is aliPhtly
4
higher than stoichiometric'(ac referred to Al (so Example* A hot
Card 1/2 2 . 4 3

5/08 62/000/014/016/039
The P oduction of noncaking and, B166YB144
301uti H 110 immediately before it begins to evaporate, receives an
on o.
4 3
addition of 0 5~; by weight Al (so ) dissolved in the minimuru.cuantity of
2 4 3
water; whereupon an excess of a concentrated solution of NH OH (with
4
respect to Al (so is stirred in. After concentrating the solution
2 4 3
by eva-poration in the Drocess of UH NO3 crystallization, 0.25A.by veiC~ht
soa-P povider is'int'roduced into the mother liquor, after which the NH '.io'
4
cry.9tallizationds carried to completion. A noncakinE product is,obtained.
bstracter's ndto; Complete translation
Card 2/2

ovef; ZMMKA,-IVan
~MTI J
Incroaoing the officiency of tho IS tM automatic vacuum imprepation
machifies. Kvasny prum, 9 no.3.-61-63 Mr 163.
1. Vyik-wme a vyvoj'pve stredisko, Prazske cukrarnyp n.p., Praha,
R

ZELIE'INIKA, J.
Quartz crystal resonatom for wideband crystal filters.
P. 20. (SLA-POPROUDY 03,20R) (Praha, Czechoslovakia) Vol. 19, no. 1, Jan. 1958
SO: Monthly Index of East European Accession (E7-fiJ) "I' Vol. 7, flo. 5. 1953

1~7 .~i
ZELa*:",' J.
Measurements of some characIteristic properties in the equivalent electrical
network of Piezoelectric crystals.
P. 696. (SLABOPROUDY OBZCR.) (Praha, Czechoslovakia) Vol. 1P, No. 10, Oct. 1?57
SO: Monthly Index of East European Accession (EEAI) W. Vol. 7, No. 5, 1958

AUTHOR: Jirf Zelenka CZECH/37-59-1-14/26
TITLE: The-Equivalent Circuit of Damped Longitudinally
OscillatiIng Piezoelectric Bars with an Incomplete Elect-Lode
PERIODICALs Ceskoslovensky" C-asopis Pro Fysikufl959,Nr 11pp 94-98
ABSTRACT; The arrangement of the electrodes is shown in Fig 4. If
f is the length of. the bar? ,e-2c is the length of the
electrodes, a Is the thickness and b is the width of
tho bar, m/2 is the distance between the electrode and
the bar. In suoh a case, we may use the equivalent olrouit
of Fig 3 (Refs 2~ 3) with the values given by Eq (1). The
function t (Eq (2)) for this case is given by Eq (4). By a
suitable choice of the relation between the length of the
electrodesTand the length of the bar, one can exclude
pertain resonant frequencies.. Table 1 gives several
examples of this. The measured parameters (Tables 2 and 3)
~Ca-rd are in good agreement with the.theory.
1/2 There are 4 figures-, 3 tables.and 5 references~ of whi h
L~ are Czech and 1 is &nglish.

CZECH/37-59-1-IV26
The Equivalent Circuit of Damped Longitudinally Oscillating
Piezoelectric Bars with an Incomplete Electrode
ASSOCIATION8 VY'7,kumny" U'stav elektrotechnick4 keramiky,
Hradec-Krdlovd
Card 2/2 (Res-. Institute for.Eleatrotechnical Ceramiosq
Hradec-Krdlovg)
SUBMITTED: Tune 18, 1958

06626
CZECII/37-59-5-2/13
.AUTHORS; ' Zelenka, ii'roi' and Tichf, Jan
TITLE: E)tperim'ent-al'"t-onfirmatl.on of Relations Usod-for
Designing tongitudinally Oscillating Piezoelectric
Specimens
,PERIODICAL: Ceskosl.ovenskj Gyasopis pro fysiku, 1959, Nr 5,
pp 463 - 472
ABSTRACT: The electripal propertles-of a piezoelectric crystal
oscillating with its k-th resonance fr-equency can be
described by an equivalent circuit consisting of-the
dynamic capacity CR in series with the ohm1e.resistance
"h and the induction L h Parallel to these is the
In some cases, it
static capacity C- (seeFigure 1).
_
0
is possible to predict the electromechanical behaviour
of a crystal, i.e.-the values of the components of the
equivalent circuit, from the knowledge of the dielectric
proportias of tho bulk material and from.,the angle of
cut of.the piezoelectric crystal.
Cady (Ref 5), van Dyko (Refs-9, 10)'ind Dye (Ref 8) have
Cardl/4 derived equations Zor computing the equivalent circuit

06626
CZECH/37-50-5-2/13
.Experimental Confirmation of Rialations Used for Designing
.Longitudinally Oscillating Piezoelectric Specimens
for the fundamentai and the odd harmonic oscillations
of pi~OzOelectric crystals- Chaloupka, Tichy and Zelenka
(Refs 1~* 14~ 19, 211 hair; dealt with even harmonies.
Cady (Ref 6) has discussod-the approximations Involved in
such derivations:. Very few.measurements to ver:Lfy the
theoretical relations have, however, -been ~ published
(Refs l,q).*
The present authors have used three sets of quartz crystals,
whose dimensions-etc. are described. L and C were
h h
daterml:ned*by~m6asuring the change in
fr6quency of the system due to tho a 'ddition of a known
capacity in series with the crystal (Refs 18, 20). The
frequency was measured to .an accuracy of 0#1 C/Sece Rh
was measured by a substitutional method.
Th~ following.oscii1lations.were studied: on the first
set of crystals the fund-amental-and the third.har&onic
longitudinal.osci-11atione On the secondset, the second
harmbnic longitudinal oscillationg an the third
Card2/4

06626
CZECH/37-59-5-2/13
Experimental Confirmation of Relations Used for Designing Longitudinally
Oscillating Piezoelectric Specimens
Oin ilvered) set, only the fundamental longitudinal
oscillation*
Except for the third harmonic, all resonance frequencies
were In good agreement with the well~known -equation (1).
Th'e-.'Iack of agreement with this equation of the third
harmonic is probably due.to coupling with other modes and
to-the finite thickness of the.orystals.
For the theoretical calculation of Lh and C h we have
used equations and,(4) (Ref 14).
Figure 3 shows the dependence of L on the angle of
h
cut-of the crystal both for silvered.and un ilver'ed
samples. The frequencies were the fundamental frequency
and the third harmonicQ Figure 4 shows the same
dependence for the mcond.harmonic on a silvered sample.
Agreement between theory and exp.erimont is good for the
fundamental and second harmonic, but not for the third
Card3/4 harmonic.oacillation.

06626
CZECH/37i-~59:_5_2/13
Di
Experimental Confirmation of-Ra1-aftons*,Vobd'jMr'.' irsi:gfiins Longi-
tudinally Oscillating Piezoelectric Specimens
Theegreement between theory and experiment enables one
to determine thepiezoelectric coefficiento from the
equivalent circuit. The-main advantage of the confirmed
agreement is the possibillty of designing crystal filters
with well predictable characteristics.
There-are 6 figures, 2 tables-and 01 references, of which
7 are Czech, 9 English, 4 German and I Sovlet.
ASSOQkTIONS: Tesla, Hradec Kr4loN4.-
Katedra. matematiky a- fyo-&-yWoly strojn~ v
4berci
(Faculty cxf-Engineering, Liberec)
SUBMITTED: February 41 1959
Card 4/4

Pinaglectric resonators of artificial dipatassiom-tertrato crystals. p. 538
SIABOPROUDY OBZOR (Hinisterstvo vacobenibo strojirewtvi, Ministerstva spoju
a Caskoslovenska vedecko-technioka spoleenost, 5okcs elektratechnika) Praha,
Czechoslovakia, Vol. 20, no..9, Sept. 1959
Monthly Ust of East Em-ropean Accessiarul (EEAI)p W. Vol. 9, no. 2,
Feb. 1960
Unal,~

-----------
-- 7T
Z/039/60/021/02/002/037
E192/E535
.AUTHORS: Svoboda. Rudolf,'Tich~, Jan and Zelenka Jir-l
TITLE: Synthetic Piezoelectric Materials
PERIODICAL: Slaboproudyo obzor, 1960, Vol 21, No 2~ pp 66-72
ABSTRACT: A number of, synthetic piezoelectrics have becti devaloj)ed
since World War 2. The and the properties of
most ofthese materials.are reviewed in the article. Two
tartrates EDT and-DKT are employed as piezoelectric
materials. The first tartrate has the foll1wing formulaz
C6Hl4N2 06; the formula for,DKT is K2Cf 11406 -;1 H2 0. The
monocrystals of these substancescrystallize in the
sphenoidic system. The crystals are illustrated.in Fig 1.
In both cases th e Z axis is identical with the crystallo-
graphic axis c and the Y axis is identical with b
crystallographic axis. The angle between X axis and
the crystallographic a axis is 15*301 for EDT crystals
and only 511 for DKT, crystals. Optically both crystals
are bi-axial.- Various physical and electrical parameters
Card 1/3 of these crystals are indicated in Table 1. The cryst7als

Z/039/60/021/02'002/037
E102/E535
Synthetic Piezoelectric Materials
can be used in resonant circuits and give a quality
factor up to 30 000- Lithium sulphate LSH having
tho formula U2 S01,1120 ~,Jfj alfjo a tifiofix]. piozoolectric
material. The crystal of LSH has the form shown in
Fig 3. The physical and theelectrical constants of this
material are indicated in Table 2. Sorbitol hexa-acetate,
SHA having the formula C6H806(COCH 3)6 gives crystals
which are soluble In water-. The ~-hape of the crystal is
illustrated in Fig 4-and-its piezoelectriccoefficients
are indicated in Table 3. This material can also be used
In resonant circuits. Phosphates ADP and KDP can be used
in electro-acoustics where Rochelle salt has been
normally employed; the chemical formula of ADP is
NH4H2PO4 while that of KDP is KH2PO4' Both materials
crystallize in a tetrogonal system (Figs 5 and 6). The
basic properties of those matarinla are indicated in
Card-2/3 Table 4. The crystals of ADP and KDP do not contain iwy

- ------ ---
E192/E535
Synthetic Piezoelectric Materials
11crystallized" water and do not easily dissolve.
Crystals of sodium chloriLte and sodium bromate can also
be used as piezoelectric materials. Elastic and
piezoelectric coefficients of these substances are
indicated in Table 5. A comparison of the above
substances is given in Table 6 where the third column
indicates the electromechanical coupling coefficient.
There are 11 figures, 6 tables and 24 references.
8 of which are Czech, 3 Soviet,~l German, I Swissand 11
Engliah.
ASSOCIATIONS., Vysoka skola.stro,-'in Liberec (Technical
UnivgrgjtX of Ub2rec) (ISvoboda and TichO and
TESLA Lanskroun n.p., za'%'~od 05, firadec Kr~klov'e
(TESLA Lan9kroun State.Factory 02, Hradec Krlilove)
(Zelenka)
SUBMITTED:. October 17, 1959
Card 3/3

8 17 _56
Z/037/6o/ooo/o4/oo9/oi4
E073/E535
AUTHORS: Tich~, Jan and Zelenka, Ji'ri'
TITLE: Longitudinal and Contour hear Vibrating Piezoelectric
Resonators from Synthetic Quartz
PERIODICAL: Ceskoslovensky' %C'asbpiis pro fysiku, 196o, No 4,
PP 328-332
ABSTRACT: To verify their properties, measurements were made on
longitudinally vibrating narrow XYt -Y -cut rods (for
~o = 0* to 5*) and square-shaped DT-cut plates (YXt
52*30')
Two sets of resonators were produced, one was made of
natural and the other o:f synthetic quartz single crystals.
All-the synthetic quartir specimens were produced from a
single monocrystal weighing 0,8 kg and grown from a
germination in the form of-a plate,with the thickness
in the direction of thp'Z-axis, at a temperature of
300-350*C and A pressurib; of about 400 atm. Data of the
resonators are given. rhe oscillations were generated
Card 1/4 by means of a Heegner oscillator for which it could be
L

Z/037/60/OOo/o4/oO9/ol4
E073/E535
Longitudinal and Contour Shear Vibrating Piezoelectric Resonators
from Synthetic Quartz
assumed that it excited series resonance in the quartz
crystal. Care was taken that in generating the
oscillations tho voltage of the resonator should be as
lo.if as possible-and that it should have a purely
sinusoidal .characteristic. In measuring the tomporature
dependence the resonatare were sealed into evacuated
glass ampoules, which were placed into an airstream which
could be heated or cooled as required;-the measurements
were carried out with tin accuracy of + 0.5*C for at
least 20 mins. The reoults of the me;surements are
described and discussed. The results proved that the
piezoelectric and the elastic properties of synthetic
single quartz crystals grown from germinations of the
Z cut are fully satisfactory and such crystals are
suitable for~generating longitudinal'andcontour shear"
vibrating"piezoelie-ctric, resonators. The slight differ-
Ohces in- the location of tho poakn of tho parnbolf% of the
Card 2/4 temperature dep endence of the frequencies of narrow

81756
Z/037/6o/ooo/o4/oo9/oi4
E073/E535
Longitudinal and Contour Shear Vibrating Piezoelectric Resonators
from Synthetic Quartz
longitudinally vibrating rods can be excluded by
appropriate selection of the orientation of the cut used,
For achieving an equal temperature dependence of the
frequency of longitudinally vibrating rods of the cut
XYt_(P , it is necessary to apply,in resonators with
synthetic quartz crystals an angle T smaller by about 1*.
The-dynamic inductance and the Q of resonators made of
natural and synthetic quartz crystals are approximately
equal. For contour shear vibrating DT-cut crystals made
of synthetic quartz, the inductance is about 4% smaller
and the Q is about one-third lower than it is for
resonators with natural quartz crystals. Similarly, the
temperature dependence curve is shifted and the zero
temperature dependence ok thefreq uency is achieved at
temperatures approximatelY VC lower than for natural
quartz crystals. There are 2'figures, 3 tables and 15
references, 2 of which are Czech, 4 Soviet, 2 German,
Card 3/4 1 Swiss, 1 Polish and 5 English. t_-K

Z/037/60/000/04/009/014
9073/E535
Longitudinal and Contour Shear Vibrating Piezoelectric Resonators
from Synthetic Quartz
ASSOCIATIONS: Katedra matematiky:a fysiky Vysoke' skoly strojn3.
v Liberci (Chair of Mathematics and Physics, Mechanical
Engineering, Technical Universit , Liberec) (Tichi)
'kroun, zAvod 0 radci Kr~alove
and Tesla Lans 5 v ff
(.Tesla Lan'9kroun, Plant 05,, Hradec Kroalov'e) (Zelenka)
SUBMITTED: January 28,-196o

ZFLENKAq Jirig_jnz.,,_
X-piezoelectric resonator as an electric four-terminal network.
Slaboproudy obzor 21 no.7;387-392 J1160., (EKAI 10:1)
1. TESIA Lanskroun narodni odnik, zavod 03, Hradec Kralove.
(Electric resonators3
(Pyroelectricity and piezoelectrici
ty

ZELE ri - i nz.
Piezoelectric resonators of synthetic quarts. Slaboproudy obzor 21
no.11:638-641 N .160. (EW 10:2)
1. TESLA Lanskrouns, narodni. podrtikp zavod 05 Hradec Kralove.
(Electric resonators) (Quartz)
(Pyroolootrialty and plocoolootrialty)

SVOBODA, Rudolf; TICHr, Jun; 2W6L%M, JIri
Synthetic piezoelectric materials. Slaboproudy obzor 21 no.2:66-72
f6o. MAI 9:6)
1. Vysoka skola. strojni..Liberec (for Svoboda, Tichy). 2. TESLA
Lanakroun n.p., zavod Ot, Hradec Iralove (for Zelenka)
(Piezoelectric'materials)

Z/0,39/61/022/009/005/005
D254/D303
AUTHOR: Zelenka, Jir'll Engineer
TITLE; Conference on piezoelectricity
PERIODICAL:L L91aboproudovy obzor, v. 22, no. 9, 1961, 573
TEXT:. A conference on piezoelectricIty was convened on July 10-1
1-961"in L#drec organized by Strojni fakUlta Vysoke' gkoly strojni
a textilni v Literci (Machine Building Department of the Mechanical
EngineOring and Textile Instituteiri Liberec) and the Ngrodnl" podnik
TESLA Lan9kroun (TESLA National Enterprise in Langkroun). It was
attended by 80 Czechoslovak, 5 Soviet, and 3 Hungarian experts;
the Soviet delegation was headed by Academician A.V. Shubnikov,
Director of the Institut Kristallografii (Institute of Crystallo-
graphy) AS USSR. A total of 19 contributions dealt with the sub-
jects of peizoelectric materials, their properties, rheasuring tech-
niques, etc. The opening report on piezoelectric materials was
held by A.V. Shubnikov; a report on synthetic Si single-crystals
.was held by V.P. Butuzov, USSR; a reDort on the influence of chem-
Card 1/3

~7
Z/039/61/022/009/005/005
Conference on piezoelectricity D254/D303
ical domposition-on the p;opertiesof piezoelectric ceramics was
held by A. Koller of the Vyzkumny ustav elektrotechnicke' keram~ky
(Research Institute of Electrotechnical Ceramics) in Hradec KrAlovd;
a report on measur'n the frequency stability of etalons was held
1 9
by Engineer J. Pt5ek of the Astronomick~ U'Stav 6SAV (Institute of
Astronomy,.Czechoslovak AS); a report on frequency deviations of
two nrecise crystal oscillators was held by Engineer J. Tolman of
the Ustav radiotechniky a elektroniky CSAV (Institute of Radio-
Engineering and Electronic, Czechoslovak AS); reports on piezoelec-
tric resonator measuring were held by Candidate of ScienceSS. Hypius
and J. Hanzl of the n.p. TESLA Lanh-roun z4vod 05 v Hradei KrAlov6
(TESLA Lan~kroun, National Enterprise, Plant 05 in Hradec Kralove-);
reports on the effect of internal influences on piezoelectr:~c res-
onators were held by K. Hripka and.K. Kratochvilova of the Ustav
fyziky Vysok6 gkol3f strojni a.textilnf v Liberci (Physical Institute
of the Mechanical Engineering and Textile Institute in Liberec);
reports on grinding and polishing of piezoelectric cuts were held
by Candidate of SciencesL. gole of the Vyzkumny/ Ustav pro mineraly
,Card 2/ 3

Z/ 91611022100910051005
Conference on piezoelectricity D2~/D303
(Research Institute of Minerals) in Turnov and by L. Kyncl of the
n.p. TESLA Lan'9kroun, zdv6d 05 v Hradci Krllovd (TESLA Lan9kroun,
National Enterprisel Plant 05 in Hradec Kr4love'); a brief report
frequepey meauring wish an Si ball was held by J. Kraus of the
V
kumn~ ustav pro mineraly (Research Institute of Minerals) in
%
Turnov; a report on the orientation of resonators with zero.tem-
perature coefficients was held by K. Dad'ourelc of the Vysoka hola
strop nl- a textiln~ v Liberci (Mechanical Engineering and Textile
Institute in Liberec)- and a report on various types of pressure
gages was hel ,d by B. ~aroun of the VyzkumO ~Istav potravlnffsk~ch
a chladicfch stroJU6 (Research Institute of Food-Processing and
Refrigerating Machines).
Card 3/3

89310
Z/039/61/022/002/001/008
1), 9e6cl
z* e 3 E192/E382
AUTHOR: Zolonka, Ji?% Engineer
TITM Piezoei_e_ct'r___'is ators for Very Lqw Frequencies
ic Re on
PERIODICALj Slaboproudy' obzor, 1961, Vol. 22, No. 2,
pp. 66-70
TEXT: For the frequency band from 1 to 3 kc/s piezoelectric
resonators are in-the form of two crystal slabs attached to
each other in such a way that the voltage applied to the
electrodes results in the elongation of one of the slabs and
the contraction of the other. For the resonators operating
above 3 kc/s, the slabs are almost square in cross-section
and the electrodes are attached to either 4 or 6 walls of
the crystal. The frequencies above 8 kc/s are covered by
the resonators, whictr are in the form of thin slabs. In this
case, the flexural oscillations are produced by means'of
4 electrodes situated on 2 parallel surfaces of the crystal.
In general, the frequency range between 1 and 10 kc/s is based
on the resonators which operate in the flexural oscillation
mode. A resonator of this type can operate at its h-th
Card 1/5

------- ----- -- -
'9310
z/o3g/61/022/002/001/008
Piezoelectric Resonators E192/E362
resonant frequency and it can be represented by an equivalent
electrical circuit, having the form of a bipole, a tripole
or a quadripole. In determining such a circuit it is
necessary to know 4 parameters, namely, the series resonant
frequency f h , dynamic inductance Lh , ratio of the static
and dynamic capacitances C /C and the equivalent series
0 h
resistance R h or the quality factor Q h The.resonant
frequency of flexural oscillations of rods or narrow slabs
can be expreased by (Ref, 3)s
2
f Mh (3)
VT p
V ,
where S! is the modulus of elasticity of the crystal
in the direction of its length p is the ratio of the
Card 2/5

89310
z/039/61/022/002/001/008
Piezoelectric Resonators .... E192/E382
crystal thickness t to its length (if the flexural
oscillations occur in the direction of the thickness) or the
ratio of the width b to the length if the slab oscillates
in the direction of the width; Q is the density of the
crystal and h denotes the order of the oscillation. The
magnitude of the coefficient mh , which is dependent on the
ratio p , was theoretically derived by ~Iason (Ref. 4). The
values of this coefficient taken from Mason's work were used
to calculate the resonant frequency as a function of b/e
and the results are given in a figure together with corresponding
experimental curves. Reasonably good agreement between theory
and experiment can be observed. rhe inductance and the
capacitance of the equivalent electrical circuit of a resonator
operating in the vicinity of its principal flexural resonance
can be evaluated from the formulae derived by Keller (Ref. 3).
The quality factor Q of the resonators is dependent on the
density of the medium in which thia resonator oscillates. The
effect of air pressure on Q was investigated experimentally
and it is shown that it is desirable to keep the resonators
Card 3/5

89310
Z/039/61/022/002/ooi/oo8
Piezoelectric Resonators .... E192/E382
in vacuum in order to achieve a high Q . The.temperature-
frequency dependence of the resonators was also investigated
and it was found that a.parabolic dependence of frequency on
temperature could be achieved for all the types of resonator.
The flexurally operating resonators for the frequencies from
1 to 10 kc/s are normally used as stable frequency sources.
In general, the resonators are connected as bipoles or, more
often, tripolea. A typical oscillator circuit with a
resonator connected asa tripole is shown in Fig. 7. In
this the piezoelectric element, which is co nnected between
the anode and grid circuits of the tube, represents a narrow-
band filter whose bandwidth can be adjusted by means of the
variable capacitance C B In.the extr.eme case, it is possible
to obtain the bandwidth almost equal to the "distance" between
the series and parallel resonances of the resonator. At the
centre frequency of tile filter the phase shift between the
torminals 1-3 and 2-3 in 1800 so that -tile condition 110cosmary
for the oscillation is achieved. Tile flexurally oscillating
Card 4/5
M
L
ffl_

89310
Z/039/61/022/002/001/008
Piezoelectric Resonators .... E192/E362
resonatorm are very usoful at frequencies betwoon I ahd
10 Re/z but.their Q and long-teri,,i frequency stability
are poor6r than those of longitudinally or shear-type
oscillating crystals. There 'are 9 figures, 2 tables and
11 refprences: - 5 Czech and 6 non-Czech.
ASSOCIATIONt Tesla Lan-SIcroun, n.p., zavod 05 v Hradci Kralove,
(State,Establishment~Tesla Lan.~kroun, Facbry 05
at I-Iradec Kiralov6)
SUBMITTED: August 16,..1960 50d2M
Fig- 7:
MS
Obr. 7. Sch6ma rApOJOnI
Ogelutoru m oltybovb
kmit&jjcjm rezoriAtorem
v dip6lovd- -pojenf.
Card 5/5

Z/037/62/000/002/007/015
r.024/E133
AUTIHORS Krato chv i lovz;, K# Tichy'. -J. 'And ZolenRa, J.
TITLE: Influence of radiation on the properties of
piezoelectric re8onators
PERIODICAL: 6eskos lovens k ' 4asopis pro fysiku, no.2, 1962,
y c
144-151
TEXT: The effect of radiation on Piezoelectric oscillators
3-S one of the environmental influences which are becoming
important as demands on the accuracy and stability of crystal
oscillators increase. The authors briefly review the field of
radiation damage in solids in general and in piezoelectric
crystals in particular, before describing their own experiments
on oscillators from natural quartz and from DKT. The source of
radiation -eras either Co-6o or X-rays from a copper trirget at
35 IcV. No change was detected in the longittidinal vibrations ov
quartz oscillators cut in -the XYa_5o direction due to
irradiation by several hundred r units of X-rays and up to 10 r
units of y rays. This result is in agreement with published
Card 1/3
;C a 'i4z.

Influence of radiation on the ... Z/037/62/POO/002/007/015
E024/E135
results. On the other hand, the torsional vibrations of type BT
(juartz-crystal-oscillators -with orientation YXE49020 at about
13 NIc/s were influenced by irradiation. irradiation ~y up to
105 x 103-rof X-rays gradually reduced.the resonance frer4aevcy
kc.to:under 13510~kc. The. reductio th e
fron. over 13511 n in
-resonance frequency tended-to.saturate*. Al s.im:Llar oscillator
with a resonance frequency of 10 INIc /,9ec was irradiated by up to
lo5 r of y-rays.- This irradiation redimed the resonance
frequency only very slightly and barely influenced the
temperatuve-dependence of' the frequency. Similar results were'
obtained witih oscillators of the type AT with orientation
YX?-350101 Tile influence of X-rays on oscillators made front
DKT was studied on samples cut in the XZa~7o3O', orientation
at a)out 100 Icc/sec. Irradiation with abou 3 x 10 r
rcOuced the rebonance frequency by 4-5 cycles ir the cry.~jtal
WaS Sealed ill a ZICISS 0TLVf,!l0pV.. and by about 12 cyclef3 when
irradiated in the open. No change in the tomperature-dependence
of the frequency was detected.. it appeared thatirrad-lation
Card 2/3

;Z/037/62/000/002/007/015
Ini'luonce, of rldiation on the
02) A 13 5
was ti-,ore effective if carried out while tIhe crystal was
vibra t ill The theoretical interpretation of the above results
11a.5 not yet I)r--cn clarified.
There are 3 figures.
adoc I~r'lov' (J.Zelonka)
ASSOCIATION: Te.-ila Lall-~kroun, z Avod 05, IIr a a
(Tosla Lang1croun, Factory 05, Hradec KrAlov~)
I'latedra matematilcy a fysiky.VgST, Liberec (K.Krat-
ochvlftov,~ and J. Tich')
Y
(Department ofl Mathematics and Physics,.VSST,
Liberec~
SUBMITTED: November 30, 1961
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C/, ;;:,/0,37/62/000/002/014/015
AUTHOR: Zelenka, J.
T IT LE, The (1-factor of contour modes of vibration of
piezoelectric resonators
PUIvOICAL, Ceskos love nsky casopis pro fysiku, no.2, 196-1.
182-185
TEXT: The use of Piezoelectric resonators in high-precision
oscillators often requires a high Q-factor and high stability of
tile resonance frequency.of the resonator. The author considers
frequencies between 6o Lind 150 ke/sec. The Q-factor of rod-
shaped quartz resonators of orientation Xyt-50 and thickness
above 0.8 imn -is usually about 130 000. The Q-factor can be
increased by optically polishing the surfaces. With a resonator
of dimensions 50 x 5 x 1.2 mm, at 2:2 OC, a Q-factor of up to
220 000 has been achieved. Quartz iresonators of type DT,
vibrating in contour tihear modna, ck. (1-factor of 220 000 can be,
achieved dven with ground faces. The highotAt valuca of Q are,
however, attainable with GT-type resonators. An optically
polished resonator of this type, with thickness 1.2 mm and
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Z/03 7/6 "W000/00-2/0 111/0 15
The Q-factur of contour modes
r,,024/L;,135
reionancg froqtiency 100 Ice/sec, can have a Q value up to
1.6 x lo at 22 OC. The Q-factors for resonators cut from DKT
are altogether lower. The Q-factor is usually-rather dependent
upon temperature. However, this dependence can be decreased by
suitable methods of mounting. The high Q-values themselves call
only be.achieved ifthe crystals are correctly mounted.
There are 2 figures.
i.DSOCIATION: Tesla Lan.
-;Icr6un, zivod,05, Hradec Kra'lov6
(Tesla LanAkroun, fact(*)ry 05, Hradec Xr6lovO
SUBIiITTED; November 14, 1961
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Z/037/62/000/0.02/015/015
E073/E
'535
AUTHOII~: Zel enita, ~J.
T TTLBI ContriWition to the equivnIent-circuit of piezo-
(Jecti-Le rcionators, t,-.iking into consideration tite
itifluence of secondary resonances
casopis pro fysiku, no.2, 1962,.186-187
TEXT: A possible method of simplifying the equivalent
circuit of it piozo-electric resonator in a certain, arbitrarily
chosen, frequency range is presented. Tile equivalent circuit
is considered in the form of a two-pole netw-ork consisting of a
finite number of series resonance circuits, a frequency-dependent
capacity and a frequency-de-pendent resistor connected in parallel.
The individual series resonance circuits, the resonance
frequencies of which are,011t5ide the frequency range under
consideration, are substituted in the simplified equivalent
circuit by an admittance, the real part of which can be considered
as expressing the conductivity of the frequency-dependent
,resistance, w1lil.st the, imaginary part can be considered as the
frcqtiency-dep6ndent:caoncitance. The high quality factor of the
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Contribution, to the. equivalent ... Z/037/62/000/002/015/01.5
E073/E535
rosomil.or Mlows difiregarding the real enimponunt
of t.ho ndmi(tanco nnd 01(ing itito cons.10111,11tioll the fwrlklonco. or
distant resonances by means of the froquency-dopendent cnpaci.~tajice.
Dopending on the position of the rosonnnce, this cnpneiAmIce will
be pom,itive oi- negative and isrf.ll incronso orlot-mV tjjt~ 14tat.JC
capacitntice of' the resom-ttor. The po.4sibility of applying the
here given interpretation of the natural resonances of the piezo-
electric resonators in an equivalent circuit wits experimentally
verified for type GT quartz resonators.
ASSOCI.ATION: Tesla Lans*'Icroun, za"V,Dd 05, 11radec Kralove'
(Tesla Lans"krotin, Plant 05, 11radec Kralov6)
SUBIMITTED: November 14, 1961
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35397
Z/042/62/000/003/002/004
//'/,S -us Ellio/F,463
AUTHOR: I e n b: a ~,J i ~i~i' Engineer
TITLE: On the electrical equivalent circuit of a piezoelectric
resonator
PERIODICAL: Elektrotechnicky' cvasopis, no.3, 1962, 142-154
TDXT:. The author derives a simplified equivalent circuit valid
in the neighbourhood of a resonance of a piezoelectric crystal,
differing from the usual.circuit in that the parallel capacitance
is not the low-frequency shunting capacitance of the electrodes
but a function of frequency, which may take on both positive and'
negative values. 'Formulae are giv-en which follow measured
curves very closely, employing a few parameters measured at fixed
frequencies. There are 9 figures,,3 tables and 13 references:
8 Soviet-bloc and 5 non-Soviet-bloc.. The four references to
English language publications read as follows: Ref*.2: Cady W.C.,
Piezoelectricity. McGraw-Hill Booli: Comp., New York-London, 1946;
Ref.4: Mason W.P. Bell Syst. Toch, Journal, V.13, 1934, 405;
Rof.5: Mason W.P., Electromechanical Transducers and Wave Filters.
D. van Nostrand, Now York, 1946; Rof.7: Piozooloctricity.
General Post Office-Selected Engineering Reports. Post Office-
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- -------- - ------
MUTOCHVILOVA, X.; TICRY, J.1 ZELENXAJ J.
The effect.of radiatlon~on the I=operties.of piezoelectric resonators.
Cs cas fys,12 no. 2:1"-151* , 162.
I.Katedra matematiky a fysikyo Itysoka skola. strojni a textilni,
Liberec (for Kratochvilova, Tichy).
2.Tesla Lanskroun, zavod 05, Hradec Kralove (for Zelenka)
N: 2M IN

Z/039/62/023/004/002/010
D291/D303
AUTHOR- Zelenka~ JiA Engineer
TITLE: Determining the attenuation decrease of narrow-band quartz
filters in the neighborhood of undesirable responses of
rctionatort4
PERIODICAL; Slaboproud~ obzorv v. 23, no. 4,,1962, 201-207
TEXT: The article deals ivith an investigation or, the influence of un-
desirable responses of piezoelectric crystals on the attenuation response
of narrow-band quartz filters made up of crystal vibrators and capacitors.
The author states that the influence of undesirable responses upon filter
transfer characteristics constitute a serious problem in the d)-sign of
filters with mechanical resonators. These resonances cause an attenuation
decrease in the suppressed frequency range and an attenuation increase
in the band-pass range. This problem is especially serious in the utili-
zation of piezoelectric resonators, ground out of monocrystals with low
symmetry, whose high degree of, disturbing resonanceswas'pointed out by
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Z/03 9/6 2/023/004/002/0 10
Determining the attenuation D291/D303
E.G. 13ronnilcova Wer. 1,1 0 parnyitnylth kolabnniyolch pezoalcktricheakikh
plastin a osnovnymi prodolnymA kolebaiii-yami. Izvestiya AS USSRI iveriya
fizo XX (1956)? p 251)4 The attenuation decrease within the suppressed
frequency range is characterized by a limit value,below which the attenu.,
ation of the filter will not decrease tinder influence of undesirable re.-
sponse, in the piezoelectric vibrators and withIn a specified frequenc;y
range.) The validity of this limit value was confirmed in experiments and
calculated by a method described in a paper by J. Zelenka (Ref. 9. Slabe-
proud~ obzor, no. 18 (1957), p 696); (Ref..11. ElLsktrotechnick:j' ~C"asopia
XIII (1962)). The limit value of attenuation can be determined from the
parameters of the electrical equivalent circuit of the crystal vibrators
and the values of the respective filter networksg thus permitting the
creation of conditions which make the influence of undesirable resonances
of piezoelectric resonators tolerable from a standpoint of attenuation
theracterintlerhe There are 11 figuresi 4 tables and 11 referencent 8
Soviet-bloc and 3 non-Soviet-bloca Tho reforencom to tha Etirliah-langu-
age publications read as, follows-.- W.G. Cady; Piezoelectricity. McGraw-
Hill Book Comp., Now York, London 1946; Piezoelectricity (Selected Engine-
erIing Reports). Londoa~ Her Majesty's Stationery Office 1957.
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Z/039/62/023/004/002/010~
Determining the attenuation D291/D303
ASSOCIATION; TESUA Lanvskroun, n.p. zfv,-od 05, 11radec Krfilovg TESLA
Lanekroun, National Fgiter-prise, Plant 05, f1radec KrfilovO
SUB',.IITTED-. December 13, 1961
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W~ ft;~ UM M~,M' 3 w1~ 95 w I e~Q-.MWIIAWU

L 17516-6-3
ACCESSION' M: AYNO1710
he relationshin between the resonimca frequency of GT-cut crystals
and time is depicted in Fi'gure 2 of Dnolosure 4. The fnterpollated log cu-rie is
given by F~,.uatlon 2 of Emlos-are 2.
The'relativ'e daily stability of t~i(, resonance frequency of 7 crys-
nia ed !r. v a -M
ti' -nno assentially affects 'ne
long-term. stablilty.
-.,a- map-5,ired in relationo
c~-.-s'al~ a re5aranc,! freQuency of 1.'C XC:zec,
are
1- -. D
W-1 t h a 301 mm-diamater and "."84 mm-deot.-1, a--d or ano-.ner
Q va- r?!Aasiir,-d In t-~ms of their resonance frec--qn-
-',3z vnin ra :,Iu7i or
are presentrd in Figure 7 of Enclosuro 6.
The article is supplemented by photographs of the resonators
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