(SANITIZED) PRJECTS 552-&-552A PROGRESS REPORT, JULY 1964

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002200010041-2
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 10
• Document Creation Date: December 28, 2016
• Document Release Date: June 22, 2006
• Sequence Number: 41
• Publication Date: August 24, 1964
• Content Type: LETTER

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Ref: 552-OD-207
24 August 1964
Projects 552-&-552A
Progress Report, July 1964
Gentlemen,
Enclosed are three (3) copies each of
Progress Report on Projects 552 and 552A for the period, July
1964, and Attachment I "Review of Meeting - July 7, 1964",
Very truly yours,
ARB/de
Encl: 3 P.R. - 5 pp.
3 Att. - 3 pp.
DDR-DUPE
OPTICAL - MECHANICAL - ELECTRONIC SYSTEMS - RESEARCH & DEVELOPMENT - PRODUCTION - MANUFACTURING
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PROGRESS REPORT
For
VERSATILE, HIGH PRECISION STEREO
POINT TRANSFER DEVICE
Period Covered:
July 1964
Dated:
20 August 1964
Job No.:
#552 and #552A
Document No,:
OD-205
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NW, loge
PROGRESS REPORT
For
VERSATILE, HIGH PRECII IOTIT STEREO
POINT TRANSFER DEVICE
Work in this reporting period has been to assemble and
debug mechanical and electrical subasser;,biies on a unit preceding
the Point Transfer Device.
OBJECTIVE ASSEMBLY
Debugging is being done on several subassemblies here.
Low power field lens appears to work well optically and mechani-
cally. Turret indexing is prompt, about two seconds per index,
and precise. Zoom magnifier has received much attention to re-
fine its optical and mechanical adjustments, Preliminary tests
of objective assembly optical performance are encouraging, How-
ever, the fiber cable will have to do an exceedingly good job to
meet system requirements,
EYEPIECE ASSEMBLY
Assembly is complete and appears to be t,bug,, free,
However, its evaluation will be started in August when system
assembly is completed. Its optical performance is good, being
about three times fiber cables resolution. Distortions and
chromatic aberrations have good control.
We have had some trouble with several fiber cables in
their image rotation and limit mechanism, It is hoped that this
problem can.be resolved in August so that completion of futur
systems is not delayed. A visit to
plant is planned to expedite solution here,
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Manufacture is nearly complete on components of support
linkage and adaptation to radial saw arn, Improvements to eye-
piece angular and vertical adjustments have been investigated,
but have yet to be resolved with customer, A gear ratio change,
for angular adjustment and a motorized vertical adjustment, ap-
pears to be the most practical solutions here;
BASE FRAME AND DRIVE MOTORS
"Slo-Syn" motors and two speed gear boxes have been
tested in assembly and examined for problems, vibration may be
of concern, but can be evaluated only when optics are installed,
Motor appears to have resonance at several points in the speed
range, causing a noticeable vibration in carriages, Speed-up
ratio between motors and screws was decreased to lower maximum
speed of screws to nearly 1 in/sec.
Two (2) speed gear boxes required small redesign to
improve their rigidity and load capacity. Because the discrete
motion of stepping motors imparts significant instantaneous loads
and vibrations, great attention is being paid to screw drive
system.
Electronics for stepping motor frequency determining
circuits have been designed and evaluated, although linearity
between stepping frequency and optical magnification will be 20;0
through a 40:1 frequency range, Most of the error is at the low
frequency end. The problem has been to purchase, or develop, a
voltage controlled oscillator for the system with linearity less
than 5% between voltage and frequency and a wide (300:1) low fre-
quency range, Although improvements of linearity will be looked
for, a circuit is being built for evaluation. Future changes are
implemented by plug-in oscillator packaging, in addition, as a
possible advantage for fine positioning and an aid in linearity
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#552 - OD-205
improvement at low speeds, the screw drive will have two (2)
motor speed. ranges, as well as the two (2) speed gear box. If
the wide range oscillator is installed later, this low motor
speed range can be assigned a (,jogging" use.
VACUUM PLATEN AND MANIFOLDS
Much difficulty has been experienced in placing molded.
rubber seals for manufacture? Delivery of tooling and. parts manu-
facturing quoted us have made it necessary for molds to be made
here, With this motion, parts may be ready for installation in
late August,
Microgrooves have received attention in experimenting
with other polishing techniques than that used by vendor, From
20x and higher magnification there is much improvement, although
microgrooves are not truly invisible at lower magnifications'
Customer will be shown these at August meeting.
To realize these improved. microgrooves, a rather lengthy
manufacturing process is required, and will significantly raise
parts cost and may greatly increase pull down time. Therefore, we
are proceding to obtain one (1) set of platens without microgrooves
for experimentation with flat holddown surfaces. With the improved
seals in the manifolds, a lower pressure difference across film
may help reduce chance of isolated air pockets under film upon
pull down,, Conclusions should be seen in late August..
HIGH INTENSITY LIGHT SOURCE
Parts nearly completely fabricated and. will be in
assembly in August.
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ELECTRICAL SCHEMATICS, WIRING DIAGRAMS
Because of improvements in voltage controlled oscillator
and additional motor speed range, electrical schematics and wiring
diagrams required extensive changes and additions?
In addition to the above, electromechanical counters
for coarse measurement required. design and fabrication of drive
circuitry to make their operation reliable. A pair of transis-
torized. monostable multivibrators and power amplifiers are re-
quired for each counter and is mounted on an easily replaceable
and serviceable circuit boards.
JOY STICK
Assembly of preceding unit is complete and awaiting
special potentiometers in joy stick mechanism. Coupling linkage
appears to work well with less lash than estimated between master
and slave control elements,
Design of electrical harness brackets and placements
needed to finish assembly will be completed in August,
POINT MARKING
Laser system is being repaired at vendor's plant, and
will receive checkout in August. Perhaps before end of August,
point marking system can be set up for specimen evaluation.
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VWII
#552 - OD-205
Work to be Completed
1. Complete experimentation and development work in film holddown
system and point marking,
2, Follow up and assist manufacturing and purchasing phases,
3a Complete all possible subassemblies.
4. Complete schematics and wiring diagrams.
50 Checkout completed subassemblies where possible.
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REVIEW OF MEETING - JULY 7, 1964
Stated failure of crystals to perform to output required
that evaluation is still delayed,
VACUUM PULL DOWN PLATES
Stated vendor cannot supply depth desired for desirable
pull down time and provide desirable visibility. Shallow grooves
may improve visibility, but will require longer holddown time.
Use of 9 1/2 inch wide film highly probable, therefore, pull down
time could be 30 to 50 seconds, What vacuum technique seen or
used by customer? I uses high manifolds - no
other analgous schemes. What solution? Possibly using imperfect
microgrooves on first unit and attempting development,
Groove structure was discussed. Disadvantage seen was
grooves steep wall.
Pull down time is only variable, customer may allow as
seen at this time.
Eyepiece elevation - will see #571 for evaluation,
#552 READOUT
Have just received contract, and as yet have done
nothing,
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'*W "Oftle
Point, flagging or numbers (index) are independent.
Could want no point mark, regardless of its size?
Circular flag is OK, but has to be independent.
ATTACHMENT I to #552 OD-205
POINT MARK FLAGGING
Because laser is out of commission, evaluation of
parenthesis is delayed,
Customer wants flagging mark as a separate variable, as
required in design objectives.
Customer was not aware that 8 x lens had to be indexed
for marking operation,
#552A ENCODERS
Navy would want a smaller least count if it cost
The question is what problems 1,000 count encoder by
Data Tech might introduce, ill search out the STAT
problems,,
Source for encoder is another problem so that reliable
equipment is purchased. Dollars are limitation here.
I
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to send Preliminary Installation Engineering form.
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I%W 1%0
REVIEW OF JOY STICK BREADBOARD
Breadboard. seen was a desirable starting point. Axial
definition, or '"channeling", found desirable. Too much "dead space"
on #571. Would take 1/2 of play as seen here.
CONTROL PANEL
Add, switches for laser reticle controls independent
flagging and point mark,
Customer would like control panel to be on same plane
of writing top within possibly 1/2 inch.
COMMENTS ON MICROGROOVES AS SEEN ONT #571
Definitely not acceptable. Customer was to look at
sample at his facility.
EYEPIECE ADJUSTMENTS
Still rough - motion cannot reach from chair, acceptable
fix could reduce vibrations or force required,
Cannot look and. adjust height while seated,
Hard to turn angular adjustment - gear ratio should be
much greater to reduce forces and vibrations,
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