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

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Circuits
  • Electromagnetic Radiation
  • Electronic Circuits
  • Electronic Equipment
  • Environment
  • Frequency
  • Oscillators
  • Radiation
  • Radio Frequency

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Electronics Engineering
  • Fluid Dynamics.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems