TRANSIENT TEMPERATURE BEHAVIOR OF THE THERMAL RADIOMETER.

Abstract

Radiometers with thermal (caloric) receivers show transients when exposed to changes in the temperature of their environment which falsify the measurement of radiant fluxes. Based on experimental observation, a simple mathematical model is developed. Instrumented on the analog computer, this model confirms and extends the experimental findings and indicates areas of improvements in radiometer design. The time integral of the transient is found to depend solely on the temperature difference between states of thermal equilibrium of the radiometer with its environment and not on the rate of change between these states. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1967
Accession Number
AD0666771

Entities

People

  • Reinhold Marchgraber

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Analog Computers
  • Computers
  • Computing Devices
  • Environment
  • Integrals
  • Mathematical Models
  • Measurement
  • Measuring Instruments
  • Models
  • Observation
  • Radiometers

Fields of Study

  • Physics

Readers

  • Atmospheric Remote Sensing.
  • Theoretical Analysis.
  • Thermal Physics or Thermal Science.