DIGITAL READOUT COUNTERS

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A002900020056-9
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: August 30, 2005
• Sequence Number: 56
• Publication Date: August 10, 1964
• Content Type: REPORT

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Approved For Release 2005/11/21: CIA-RDP78B04770A002900020056-9
DIGITAL READOUT COUNTERS
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The Digital Readout Counters manufactured b are used
to count pulses from a measuring engine reading ead. Two
things are done with the count:
A. The count is converted to a decimal digit reading
and displayed to the operator on Nixie tube counters.
B. The count is stored in a synchronizer buffer and
transmitted to a computer, via dataphone, as binary
pulses in a standardized coded sequence.
The counter usually consists of four chassis:
A. A control panel
B. A Synchronizer
C. An x-axis counter
D. A y-axis counter
Additional counter chassis may be added to add axes, and
a 4-axis counter will have two additional chassis.
There are currently on order three 2-axis systems and one
4-axis system and spares.
The 2-axis counters are in work and delivery of the first
one will be on or about August 22 as indicated in my pre-
vious report. All the circuit boards are complete for all
three systems. Wiring of counters and control panel is
complete for the first unit and checkout will start today.
Wiring of the first synchronizer started today and will
take about a week. The circuit boards on the spares con-
tract will be delivered concurrently with the first 2-
axis system.
The information which required by August 1
was received verball and aid not old up the 2-axis
systems. indicated the 2-axis s stems
would be used with the eading heads so ill
include the lamp excitation power and the $ Vol power
from connectors on the synchronizer. The 4-axis counter
Declass Review by NGA.
Approved For Release 2005/11/21: CIA-RDP78B04770A002900020056-9
 Approved For .ease 2005/11/21: CIA-RDP78B0477*2900020056-9
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Digital Readout Counters August 10, 1964
will be used with thel reading head and
that is a different story.
The pulse data which received from
id not correspond to the data which
received from who is Chief Engineer at
Further, that the pulse
measurem maae on a lunit in-house '~;R ne nas are different from anything quoted. suspects that
the head does not Include the pulse shaping
circuitry to make it operate like a Class C amplifier
with a constant pulse output. It appears that the head
output pulse may be varying with head pickup conditions
like a Class A amplifier.
'STA~ feels that making a counter, which counts pulses
rom a signal generator, count pulses from a transducer
should be very simple and straightforward. He would expect
the problems to arise when the counter is hooked to the
computer. Generally, transmitting to and receiving from
a computer is a much more difficult interface.
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will get clarification of the pulse
shape rom The pulse shape information
in order to make an October 1 delivery.
will be nee e y no ater than September 15, 1964,
The cable lengths for the 4-axis system are to be specified
by The cable length information is needed
by y e -em er 1 1964, in order to fit into their
manu acturing schedule. advised 0 to
make the cables 15 ft long g ina in ormation was not
available in time.
Since all the counters were contracted for at about the
same time, the price was reduced about 5% from the original
quote.
Except for the problems generated by the
pulse, 0 has been well satisfied wi
by the customer. He says that it is unusual that they
are brought in on a job early enough to have adequate
delivery time. I would consider that a compliment to
I rs foresight.
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that and possibly
as soon as they have checked out the
unit in-house, preferably sometime around
August 22. It is important that they discuss the pulse
Approved For Release 2005/11/21: CIA-RDP78BO477OA002900020056-9
 Approved For?ease 2005/11/21 : CIA-RDP78BO477902900020056-9
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Digital Readout Counters
matching interface solution with
August 10, 1964
indicated that was intelligent
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and knowledgeable. He unders oo the circuitry and asked
intelligent questions. A second visit would probably be
valuable after has worked on the actual unit.
Approved For Release 2005/11/21: CIA-RDP78BO477OA002900020056-9