FIELD: measuring technology.
SUBSTANCE: in the invention temperature test is enabled by using of sequential illumination of a controlled point of a metal surface by three lasers with known radiation powers and wavelengths and evaluating increments photodetector signals arising in sequential illumination, each of which is rated for power of the appropriate laser. The rated increment photodetector signals are used to calculate the relations of monochromatic reflexion coefficients. Emittance deviation of a metal surface from a constant is to be considered with testing thermodynamic (actual) metal temperature in changing the spectral radiation coefficient while heated.
EFFECT: higher accuracy of thermodynamic metal temperature testing.
2 cl, 1 dwg
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