A NEW APPROACH TO THE MEASUREMENT OF TERRESTRIAL RADIATION

Abstract

An instrument has been designed for the measurement of terrestrial radiation, and especially for the isolation of the upward or downward component during daytime conditions. The essential principle is the differential signal generated by opposed thermopile detectors. One sensing unit responds to radiation of wavelength from 0.57 to about 30 microns; the wavelength response of the other sensor is from 0.53 to about 3 microns. The sensitivity of the latter can be adjusted so that only the signal for the region from 3 to 30 microns is accepted. A detailed discussion of the physical principles involved in the interpretation of such measurements is included as is also a summary account of the basic calibration and operation procedures. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0265139

Entities

People

  • A.j. Drummond

Tags

DTIC Thesaurus Topics

  • Calibration
  • Detectors
  • Measurement
  • Radiation
  • Sensitivity
  • Terrestrial Radiation

Readers

  • Optical Physics and Photonics.
  • Space/Atmospheric Physics.
  • Theoretical Analysis.