Open AccessRare earth optical temperature sensor
Author(s) -
Donald L. Chubb,
David S. Wolford
Publication year - 2000
Publication title -
review of scientific instruments
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.605
H-Index - 165
eISSN - 1089-7623
pISSN - 0034-6748
DOI - 10.1063/1.1150616
Subject(s) - millisecond , materials science , radiation , wavelength , temperature measurement , optics , optoelectronics , physics , thermodynamics , astronomy
A rare earth optical temperature sensor is disclosed for measuring high temperatures. Optical temperature sensors exist that channel emissions from a sensor to a detector using a light pipe. The invention uses a rare earth emitter to transform the sensed thermal energy into a narrow band width optical signal that travels to a detector using a light pipe. An optical bandpass filter at the detector removes any noise signal outside of the band width of the signal from the emitter.
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