A FLUIDIC AMMETER FOR MEASURING CURRENT IN BRIDGE WIRES,
Abstract
A fluid system to measure current induced in electronic circuits by radiofrequency electromagnetic radiation is discussed. The system consists of two temperature-sensitive flueric oscillators, one containing a bridge wire. Current in the bridge wire produces heat that increases the driving gas temperature, hence, frequency of one oscillator. The frequency increase depends on the amount of current through the bridge wire. The other oscillator provides a reference signal at a lower frequency. The beat frequency that results on mixing the signals from the two oscillators is amplified with a proportional amplifier and transmitted acoustically out of the radiation environment. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1970
- Accession Number
- AD0708549
Entities
People
- Jonathan E. Fine
Organizations
- Harry Diamond Laboratories