A fiber optic temperature sensor (FOTS) system consisting of an optical probe, a flexible fiber optic cable, and an electro-optic signal processor was fabricated to measure the gas temperature in a turbine engine. The optical probe contained an emissive source embedded in a sapphire lightguide coupled to a fiber-optic jumper cable and was retrofitted into an existing thermocouple probe housing. The flexible fiber optic cable was constructed with 200 micron core, polyimide-coated fiber and was ruggedized for an aircraft environment. The electro-optic signal processing unit was used to ratio the intensities of two wavelength intervals and provided an analog output value of the indicated temperature.
Flight testing of a fiber optic temperature sensor
Felduntersuchung von optischen Temperatursensoren aus Kunststofflasern im fligenden Objekt
1993
10 Seiten, 5 Bilder, 2 Tabellen, 7 Quellen
Aufsatz (Konferenz)
Englisch
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