LOCAL LASER MEASUREMENT OF HEAT FLUX IN A PLATE

A. N. Magunov, S. V. Merkulov

Abstract

Modulus of the local temperature gradient and heat flux along a transparent plane-parallel plate may be measured using a single-beam optical scheme and registering an amplitude of Fabry-Perot optical resonances by the spectral scanning over a narrow interval. This interval is of the order of nanometer at probing wavelength of ~1 µm when 1-mm-thick semiconductor single crystal is used as heat conductor and as flux sensor, simultaneously.

Keywords

heat flux, laser interferometry, fringe visibility

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IMEKO-WC-2000-TC12-P311.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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