Temperature measurement with combined photo-luminescent and blac

Details Temperature measurement with combined photo-luminescent and blac Temperature measurement with combined photo-luminescent and blac

1991-12-13

1993-02-02

Cuchlinski, Jr., William A.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

374161, G01K 1120, G01J 508

Patent

active

051833387

ABSTRACT:
High temperature range black body techniques are combined with lower temperature range photoluminescent techniques to provide an optical method and apparatus for measuring temperature over a very wide range. Among the various optical probe configurations disclosed which combine the black body and photoluminescent technologies is an optical temperature measuring probe including an elongated transparent light pipe with a black body cavity and a photoluminescent material adjacent one end of the light pipe. Signal detection and processing can be combined, and temperature measurements made by the photoluminescent technique within an overlap of the two temperature ranges can be used to calibrate measurements made in the higher range by the black body technique.

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