FIELD: temperature control in various production and living premises. SUBSTANCE: device measuring temperature has several fiber-optical paths including more than two light guides, optical sensitive elements are placed between their butts. Sensitive elements change their spectral transparency under effect of temperature variation in controlled object. Input sections of fiber-optical paths are set in opposition to common radiation source and output sections of fiber-optical paths are located opposite to common radiation detector. EFFECT: simultaneous control of temperature in several points with employment of single optical device. 3 cl, 7 dwg
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