MEASUREMENT OF AIR TEMPERATURE FLUCTUATIONS WITH THERMOCOUPLES

Abstract

Equations for determining the radiant heating and time constant of small thermocouples used for air temperature measurement are presented. Calculated and measured values are compared for small diameter copper-constantan thermocouples exposed to direct sunlight. The effects of two types of aspirated thermoshields on temperature fluctuations measured inside the shield with 0.0025 cm thermocouples were determined. Thermoshield design was shown to be critical in temperature fluctuation measurement.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0697107

Entities

People

  • G. S. Campbell

Organizations

  • Atmospheric Sciences Laboratory

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Atmospheric Sciences
  • Boundary Layer
  • Computational Science
  • Computers
  • Convection
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Energy
  • Equations
  • Frequency
  • Heat Transfer
  • Measurement
  • New Mexico
  • Radiation
  • Refractive Index
  • Solar Radiation
  • Turbulence

Fields of Study

  • Physics

Readers

  • Thermal Physics or Thermal Science.