This article is cited in 8 papers

Laser applications and other topics in quantum electronics

Application of two-colour pyrometry for measuring the surface temperature of a body activated by laser pulses

V. M. Kirillov, L. A. Skvortsov

Institute of Cryptography, Communications and Informatics, Academy of Federal Security Service of Russian Federation, Moscow

Abstract: The features of contactless measurements of the surface temperature of bodies by the method of two-colour pyrometry of samples activated by periodic laser pulses are considered. The requirements imposed on the parameters of laser radiation and a measuring circuit are formulated. It is shown experimentally that surface temperatures close to room temperature can be measured with an error not exceeding 3% after elimination of the superfluous static component of the excess temperature. The sensitivity of the method is estimated. Advantages of laser photothermal radiometry with repetitively pulsed excitation of surfaces over the case when samples are subjected to harmonic amplitude-modulated laser radiation are discussed.

PACS: 07.20.-n, 42.62.-b

Received: 21.03.2006
Revised: 18.05.2006

 English version: Quantum Electronics, 2006, 36:8, 797–799

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