MEASURING METHOD OF REFLECTIVITY OR TRANSMITTANCE OF ELECTROMAGNETIC WAVE AT HIGH TEMPERATURE

摘要

PROBLEM TO BE SOLVED: To provide a measuring method enabling measurement, without using a standard sample, of the true reflectivity of a body itself relative to an electromagnetic wave at a high temperature, for a wide range of incident angles and reflection angles, and also enabling transmittance to be measured.;SOLUTION: In this method for measuring a reflectivity or a transmittance at a high temperature by irradiating an electromagnetic wave to a high-temperature sample, and by detecting the electromagnetic wave reflected by the sample or the electromagnetic wave transmitted through the sample, while heating an irradiation portion at a prescribed temperature by irradiating a beam to at least either surface of the front and rear surfaces of the sample by a heating means, the electromagnetic wave is irradiated to the irradiation portion from an electromagnetic wave irradiation means, and an electromagnetic wave detection means is moved concentrically around the sample, and the electromagnetic wave reflected by the sample or the electromagnetic wave transmitted through the sample is detected during movement.;COPYRIGHT: (C)2009,JPO&INPIT