Accession Number:

AD0661291

Title:

AN IMPROVED POLARITY COINCIDENCE DETECTOR,

Descriptive Note:

Corporate Author:

ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s):

Report Date:

1967-09-01

Pagination or Media Count:

28.0

Abstract:

A Polarity Coincidence Detector has been constructed with increased sensitivity and sufficient threshold stability to allow integration times in excess of 1,000,000. The system uses sampling at four phase locations, thereby increasing the signal count and shortening the integration time for a given accuracy by eliminating the necessity for measuring the noise separately. The modulation frequency can be varied between 50Hz and 50 kHz without adjusting the location of the sampling pulses. Solid state circuitry is used throughout the system. The straight counters are replaced by arithmetic units, resulting in greater dependability. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE