LINEAR PHASOLVER MEASURING ENGINE, CONTRACT

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001000060040-7
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: May 22, 2001
• Sequence Number: 40
• Publication Date: February 27, 1964
• Content Type: REPORT

Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7
Linear Phaeolver ~isasuring IlZgine, Cont~}act
~jill not be a pacing; item. The digital circuits are
almost all built and tested and the rack wired for
them. The analogue circuits are being worked on.
The drive amplifi+?r and preamp which was used in phase
1 at 6~ KC is being tested at 10 Kc for se in this
phas?. They are making open loop ,sin a d phase plots
and will check it for stable operations aver a temps
eerat ur a range of 500 F t o 1000 ~',
They have alloted 4 weeks in April to ch ek out the
electronics, They expect to use the old plates fcttm ph.l for
the checkout so that the electronics pha e will be
in good order when they go into system t st the end
of April .
seem to eves the program
pr y we un er control, They have started Lhe
electronicwark again and v,~i t13 c ontinuea z;rograss it
STATINTL 0 is working on the master anal it is ue March I9+
STATINTL
The master will than go to for ms~ki g the final
plates.., which will take about weeks.. The? glass. plates
have been com, leted by d are now aver STATINTL
STATINTL at for measurement,
"~~~~~"" Tf meet their dates.,. TG ex Bets to b?
able to demonstrate 1 micron measuring c pability before
the end of Junes. This is a little later than +..heir
contract date, but they have not far:~all requestQd ~.
co ract extension, The:y are, currently n the schedule
that was reported in the 5th progress re ort, 12 Dec. 63
Vie diseussod some of the approaches to t e design of a
prototype measuring machine using the li ear phasolver
as the3 measuring engine, Tt is importan of course to
retain they unique advantages of the! line r phasolvesr:
a. I~To ambiguity in then reading
b. Igo long train of pulses to coon
c. ?vo limitatic:n on traverse rate mposed by a
lead scre?~~u rate or by a cc~ untin rate;,
Thtay will put some of their ideas on a er for
STATINTL to consider.. They wi 11 also send ~a copy of their
proposal for a i~lhitm Sands reader. They ar-~ tl netg~-
Vitiation on that contract now.
Declass Review by NIMA / DoD
STATINTL
Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7
 J I
Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7
BBD--4 X011 Film Dryer
I arranged with ^ to see the ABD~4 work
assigned their number one field service
cut the machines This is
stationed in Washington Dt C~ or severe
Charley want over the whale machine and
rollers. After the careful realignment,
tracking over the output vacuum roller.
the machine for one, the tracking ever th
was givirg trouble.
uJc ran it dry with thin base film on a r
about waist high on the forward wa11 of
There was a r?~11 already on the machine
300 o r 400 feet 1 of t can i t. ~e ran that
troubles and it looked e.s though the tra
had been cured.
Then we took the full roll of about 904
it through the machines again Mistrackl
~7~19 >4
had
'man to check
Hs was:
years.
realigned the
he got good
1~h ~n he ran
~ inpu+~ roller
~ 11 er mount sd
th e machinsw
?:ith about
off with na
yking problem
cot and ran
g aver the
d u~ i ilry th a
g00 foot run. It appeared tome that the tension on
input vacuum roller occured 3 or 4 times
that input spool that f sd film to the in
-
roller nerd ad3uetm~nt, but ws wens una
e to resolve
the problem at that time.. It was unfort
was not availabis to comma
perfarr~ance of the machine on that run c
t on that
ompared to
ing tests.
YVe ran the machine at all speeds from slOwes~ of about
5 fpm I estimate to the highest of 18~ f m which I
the previous performance when. he was taro
measured. I had thought that the tap speed would bs
up around 25 or 30 fpt~. Caution had to be sxerciss~l
when varying the speed that the input and output vacuum
roll era did not get too far out of sync
throw slQCk ar put excess tension on th
collapse the air bearings. Collapsing t
film and
e air bearings
w4s only a momentary problem with dry fillet, but with
tacky film, it might a?~~ stick to the t
The control paned of the machine was in
labeled but I expect ^ will take care
dsquately
Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7
 e ruary 7~, 1964
Approved For Release 2007/07/25 :CIA-RDP78B0474
Digital Readout Comparator
The first unit Wass shipped to and r c~eived by them S
on Monday JAn. 20: 0 has not Started' o work with
this unit yet, so there are no reports o problems from
the user,
~ is kn the final stages. of checking o t the second
unit, They found some wiring errors -on hs boards., but
on the whole it seams to be going well; They also disp
covered some poor workman ship in their abler and
were concerned that it was possible the abler ~or,~ the
first unit had the ss~me thin wrong, Thy immediately
contacted and asks him to take
a look at the ca~Oles to sae if they were OR, I3ava said
ha would but they have not heard from hi yet. Ths
cables of coursd were working alright wh n ~ shipped S
them with the unit.
INTL Ths replacements for the broken ~~ s~it~h.es on the
STATINTL front panel were received. did n t send a
mounting bracket v+ith them, calla 0 in
STATINTL Idah?, Opromised to send the brae sets air mail,
ao they should arrive Monday,
unit, and
is technician w rking nn the
the engineer e pact to finish
their checkout this afternoon. The unit will tneri bs
operated continuously for about 8 hours, than it goes to
QC far visual ch?ck and sign off, They xpeet to ship
it sometime next week,
_------ ~~ They do not hav? as much info~matian rn he Optomeehanisms
puled as they would like, The bast thin cf course would
be for them to have a ceding heald and fE d its output
to their counter. Then the~T ~~~ou~.d be su ~ them. is no
problem. 2'hey don't know for example if the pulse is
symmetrical, cr the rise time ot~ tn~~ lea ink; edge or the
fall time of the trailing edge,: Ths inp t iffipedanee of
L their count sr is FOR ohms. and they s~ssum that is adequate
for the reading heath Th y would a1s~o ~
like tc be aasurcac~that the pulse height f 1 volt stays
constant over the range of the counting ate. If not,
how much does it vary? X11 they really now about the
pulse they arc counting is thAt it is A quare wave of
1 volt peak. The previous pro~eet sngin er who started
this design may have some t~f this ini'orma ion but e
current people don't, S
 Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7
s~LD?4 Roll Film Dryer
still has not completely solved the t a,eking problem
on the output vacuum roller. The film ill run through
well far a gout 5DO feet and then it star s to go off.
This is pretty goad, but it doss not ps it unattended
operation. I can re~ae~nbsr when I would a,vs considesred
that superb pert'ormance,:
as 1D mils for the outer ~ inches, but t at sti11 did
tapered the ends. of the vacuum oller as ~ueh
not completely salve the problsm~ altho h there waa
soma improvement
bs
The tracxin roblem seems to fundamental to the opsr~
atic~n o ~~~ an air bearing dry sr ana ma require soma
intensive investigation over a period at' time to ensure
the prep sr solution.
~is considering two possibilities. Ons is to remove
the ofr'ending ro:Ller and substitute an i ler rubber
covered roller or an a.ir bsa.ring roller. The dancing
roller will then govern the sp~sed of the take up spool
to e?liminate slack instead of a metering caller
T!^_e other is to put an a.ir bearing rolls immediately in
t'ront cf the vacuum roller. By edges gui ing the t'ilm
ors the air bearing, it will oe t'ed onto he vacuum roll sr
straight and mould riot present tracking problems.
Frankly, I think this problem is a prime? canaidate for
an investigative preg~am. It seems tc3 m it snoula be
considered jointly witnthe HT.~1~~ invests ativs program.
v
~~
_:~,_ ~:
Approved For Release 2007/07/25 :CIA-RDP78B04747A001000060040-7