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Miniature Fourier Transform Instrument for Radiation Thermometry

Published

Author(s)

F J. Dunmore, Leonard Hanssen

Abstract

A miniature Fouier transform (FT0 spectrometer was evaluated as a device for remotely measuring the temperature of a high stability/emissivity blackbody. The device, commercially manufactured by Photonex LTD.,* is based on the novel design of a polarizing Wallaston prism spatial domain interferometer, with a Si diode array detector, and without any moving parts. The calibration of temperature using Planck's law showed a consistent non-linear effect. This results in a relative uncertainty 1% for measurement of temperatures 500K and above. Planned calibration measurements should reduce the nonlinearity related error and improve the FT temperature measurement.
Citation
International Conference on Fourier Transform Spectroscopy

Keywords

blackbody, Planck's Law, Si diode array detector

Citation

Dunmore, F. and Hanssen, L. (2008), Miniature Fourier Transform Instrument for Radiation Thermometry, International Conference on Fourier Transform Spectroscopy (Accessed February 28, 2024)
Created October 16, 2008