FLOW CALORIMETERS FOR THE 4-MM AND 2-MM WAVE-LENGTH RANGE

Abstract

Present commercial calorimeters operating at wavelengths below four millimeters are limited to the measurement of a maximum of one-half watt of average power, thus requiring the use of precision calibrated attenuators for higher powers. This report describes the mechanical and electrical characteristics of a 4-millimeter (50 to 75 kmc/s) and a 2-millimeter (90 to 140 kmc/s) flow calorimeter capable of measuring several watts of average power. These calorimeters have an advantage over commercially available units by being capable of direct power measurements from one milliwattt to several watts without the use of auxiliary component.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1962
Accession Number
AD0296320

Entities

People

  • Vincent C. Kapfer

Organizations

  • Rome Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Calibration
  • Calorimeters
  • Construction
  • Efficiency
  • Flow Rate
  • Fluid Flow
  • Frequency
  • Impedance
  • Measurement
  • Power Measurement
  • Precision
  • Resistance
  • Temperature Gradients
  • Thermopiles
  • Transmission Lines
  • Waveguides

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Thermal Physics or Thermal Science.