TELECON PERTAINING TO MENSURATION ACCURACY OF STEREO POINT TRANSFER DEVICE

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A003000020017-9
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 1
• Document Creation Date: December 28, 2016
• Document Release Date: April 15, 2002
• Sequence Number: 17
• Publication Date: October 25, 1966
• Content Type: MFR

Approved For Release 2002/CONFlDEN 06/17: CIA- AL P78B04747A003000020017-9
NPIC/P&DS/D/6-1638
25 October 1966
MEMORANDUM FOR THE RECORD
SUBJECT: Telecon Pertaining to Mensuration Accuracy of Stereo Point
Transfer Device
elephone conversation
1
,
indicated that there are two methods of bringing the Stereo Point
Transfer up to meeting measuring accuracy as set forth in the
specifications.
A. Shim Method
Shim both Y axes to half the existing error (Left is
20 microns and Right is 28 microns). Specification
maximum is 15 microns in 9 inches s would require
B. Correction Cam Method
This would cut the error one-half on all four axes by
employing a tilt nut type of an arrangement. This would
require about l2 weeks total time and cost or all
four axes.
2. wants either method done as a change in scope. They do
not intend to do this and absorb the cost laims that the
specifications require only their best effort and does not require
22 microns + .005% of distance traveled.
3. The information obtained from this change in scope would also
be applicable to future digitizing of the fiber optic viewers.
Declass Review by NIMA / DoD
Development Bran&h_,_P&D3
Distribution:
Orig - File
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Approved For Release 2002/06/17: CIA-RDP78B04747A003000020017-9 EtCONFIDENTIAL sification