LINEAR PHASOLVER MEASURING ENGINE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A002900020069-5
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: June 28, 2006
• Sequence Number: 69
• Publication Date: July 10, 1964
• Content Type: REPORT

Approv f'ReleaseNO06/08/31 CIA-R DP78B04770A002900020069-5
July 10, 1964
LINEAR PHASOLVER MEASURING ENGINE
.0
Everything is waiting on the driver master patterns being
made by STAT
The Phaso ver a ectronics'are complete and have been tested
for accuracy and drift. They were packaged in a small
console, operated with the old patterns and were found
to work satisfactorily.
Imade a trip East in June and visited ?TAT
e talked o there. At the time of STAT
visit, ha ma a rive driver masters and was working STAT
on the sixth. They were not yet successful. I first STAT
makes a single-cycle sine-wave master at about four times
size by step positioning and exposing a narrow slit. They
have no trouble with this operation and have made several
of the small plates. The single-cycle master is then
reproduced on the final master at a 4:1 reduction by manual
step and repeat indexing.
They tried an automatic step and repeat but it did not work
out. There are 200 steps per pattern and five patterns
on the 10-in, long plate, thus 1000 manual operations are
required. They are having trouble doing this without
error. However, 0 received a call from 0 on Thursday, OTMM
July 9, saying he had successfully made two complete
masters. He is airmailing one tol and sending STAT
0 for their inspection. STAT
is to prepare the working driver from0 driver STAT
master.
I that they had made STAT
one coupler. The coupler is a series of conducting bars
plated on a 26-in. long glass plate. Measurements indicated
the accuracy was just barely good enough. On checking
back, found the temperature variations were wide, so STAT
they stripped the plate and will do it over. expects STAT
 Approved For Release 2006/08/31: CIA-RDP78B04770A002900020069-5
? ?
S
Linear Phasolver Measuring Engine
to complete the coupler plate next week. received STAT
the cost overrun funds so there is no interruption to the
work.
Based on receiving the driver master from I Inext week and STAT
barring other mishaps, thinks they wil be ready for STAT
the feasibility dem October. I think it would
ageous for (and, if possible, AT
to see the tease i ity demonstration and participate STAT
in a iscussion and evaluation. To be effective, though,
they must do their homework. They must familiarize them-
selves with the present project and be prepared to discuss
specifics of implementation of the results. I recommend
that E.- I and, if possible, I accompany STAT
-o wi ness the feasibility demonstration of sub- STAT
micron measurement.