FIELD: photometry. SUBSTANCE: installation has a radiation source, a modulator, a lighting system as well as a monochromator, a spherical mirror, a photometric ball and a radiation detector mounted in the course of radiating. It also has a specimen holder and a heating element, the latter is made in the form of a shaft furnace, and the holder is mounted in it for displacement along its axle, with it being made with a recess for the specimen. EFFECT: enhanced accuracy of measurements. 1 dwg
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