DEVICE FOR MEASUREMENT OF RADIANT FLUXES INTENSITY IN PROCESS OF HEAT-VACUUM TESTING OF SPACECRAFTS Russian patent published in 2009 - IPC G01N25/72 

FIELD: physics.

SUBSTANCE: device is arranged from two neighboring assemblies, in every of which sensitive element on insulating substrate is installed inside corresponding assembly body; mentioned bodies are arranged in the form of rectilinear right-angle prism and/or circular straight cylinder; for every assembly one base of body is arranged with maximum high coefficient of heat radiation (ε₁ ^max>0.5 and ε₂ ^max>0.5), and the other base and side surface of body for every assembly are arranged with minimum coefficient of heat radiation (ε₁ ^min<0.5 and ε₂ ^min<0.5); at that base of the first assembly body with ε₁ ^max is installed parallel to surface of controlled section of spacecraft and is directed to the side opposite to it, and base of the second assembly body with ε₂ ^max is installed parallel to surface of controlled section of spacecraft and is directed towards it.

EFFECT: simplification of design and increased reliability of measurements.

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