A COMPUTER FOR A MARINE GRAVIMETER WITH AN OPTICAL MECHANICAL CONVERTER,
Abstract
The vacuum tube computer developed by the Division of Experimental Gravimetry of the Institute of Physics of the Earth, AN USSR, for summing a predetermined number of ordinates, to be used with the marine gravimeter could only be used for laboratory investigations because its power requirements were too high for most field applications. The Division and the Institute's Electronic Automation Laboratory therefore, joined forces to develop a semiconductor version of the same device, leaving the circuitry unchanged. The device has the following basic characteristics: (1) summation time: 0.1-0.9 second, by 0.1 second; 1.0-9 seconds, by 1 second; 10-90 seconds, by 10 seconds; 100-900 seconds, by 100 seconds. Summation time is set manually before the first measurement; (2) adder capacity 10 to the 8th power pulses; (3) measuring frequency 100 kc; (4) measurement error of time interval not over plus or minus 10 to the -5th power seconds; (5) information output: light display in binary decimal code, as well as to magnetic tape in parallel 13-bit binary code for subsequent checking of averaging results using computers; (6) beginning of reading set by operator manually; (7) power supply from 12 volt battery.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 26, 1968
- Accession Number
- AD0675248
Entities
People
- I. P. Bashilov
- V. A. Konovalov
- V. A. Tulin
Organizations
- National Air and Space Intelligence Center