Accession Number : AD0718249

Title :   A Jet-Edge Oscillator for Sensing Electrical Currents,

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : Fine,Jonathan E.

Report Date : OCT 1970

Pagination or Media Count : 19

Abstract : A flueric oscillator was built and tested as a sensor for measuring electrical currents in bridge wires. The conductor (bridge wire) was mounted in one cavity of a jet-edge resonator oscillator. The results of the tests, in which the pressure an temperature of the air supply were held constant and the direct current through the bridge wire was varied from zero to 100 mA, show that the change in oscillator frequency, due to heating the wire, is proportional to the square of the current. The oscillator is used as the sensing element in a fluidic system being developed to measure currents induced in electroexplosive devices by radio or radar transmitters. (Author)

Descriptors :   (*AMMETERS, FLUIDICS), (*FLUIDICS, TEMPERATURE SENSITIVE ELEMENTS), (*EXPLOSIVES INITIATORS, *NONDESTRUCTIVE TESTING), DETECTORS, ELECTRIC CURRENTS, OSCILLATORS

Subject Categories : Fluidics and Fluerics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE