A HIGH-TEMPERATURE BLACKBODY RADIATION SOURCE

Abstract

A high-temperature blackbody radiation source, consisting of an electrically heated graphite tube with a small centrally located hole through one wall, was developed for use as a secondary standard in the calibration of radiometric and spectrometric instruments. The spectral emissivity of this source, at 0.65 microns, was calculated by the DeVos method, for which graphite emissivities and temperature gradients were measured in situ with an optical pyrometer. The values of source emissivity ranged from 0.9981 = 0.0004 at 1000C to 0.9997 = 0.0002 at 2000C.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1965
Accession Number
AD0616758

Entities

People

  • H. Y. Yamada

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Ballistic Missiles
  • Blackbody Radiation
  • Elements
  • Equations
  • High Temperature
  • Measurement
  • Measuring Instruments
  • Optical Pyrometers
  • Physics Laboratories
  • Pyrometers
  • Radiant Intensity
  • Radiation
  • Standards
  • Temperature Gradients
  • Test And Evaluation
  • Universities

Fields of Study

  • Physics

Readers

  • Spectroscopy.
  • Thermal Physics or Thermal Science.