Operation UPSHOT-KNOTHOLE, Nevada Proving Grounds, March-June 1953. Project 1.1A-1. Evaluation of Wiancko and Vibrotron Gages and Development of New Circuitry for Atomic Blast Measurements

Experimental instrumentation was tested on Operation Upshot-Knothole in an endeavor to improve existing blast phenomena measuring equipment and techniques. Experimental designs tested include a field unit oscillatoramplifier using transistor circuit elements, a subminiature two-wire field unit, a commercially developed Vibrotron gage and amplifier unit, and a frequency deviation multiplier circuit for obtaining increased signal-tonoise ratios. The Wiancko pressure gage was also evaluated more fully. The results of the tests are described. Transistor circuitry was found to be little affected by atomic blast phenomena. (M.P.G.)