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Title: LINEAR COUNT-RATE METER

A linear count-rate meter is designed to provide a highly linear output while receiving counting rates from one cycle per second to 100,000 cycles per second. Input pulses enter a linear discriminator and then are fed to a trigger circuit which produces positive pulses of uniform width and amplitude. The trigger circuit is connected to a one-shot multivibrator. The multivibrator output pulses have a selected width. Feedback means are provided for preventing transistor saturation in the multivibrator which improves the rise and decay times of the output pulses. The multivibrator is connected to a diode-switched, constant current metering circuit. A selected constant current is switched to an averaging circuit for each pulse received, and for a time determined by the received pulse width. The average output meter current is proportional to the product of the counting rate, the constant current, and the multivibrator output pulse width.
Authors:
Publication Date:
OSTI Identifier:
4843603
Report Number(s):
US 2999168
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Research Org:
Originating Research Org. not identified
Country of Publication:
United States
Language:
English
Subject:
ENGINEERING AND EQUIPMENT; CIRCUITS; COUNTERS; DIGITAL SYSTEMS; DIODES; ELECTRIC METERS; ELECTRICITY; MULTIVIBRATORS; PULSE ANALYZERS; RATE METERS; SWITCHES; TRANSISTORS