THERMALLY STABLE FIBER-OPTICAL PRESSURE TRANSDUCER Russian patent published in 2002 - IPC

FIELD: measurement technology. SUBSTANCE: thermally stable fiber-optical pressure transducer has optoelectronic unit with radiation source and detector, fiber-optical converter and membrane sensitive element. Converter is built on base of thermally stable light guides. With rise of temperature power of radiation source falls and transmission of thermally stable light guide increases at same time. Wave length of radiation source is less than wave length of light guides of fiber-optical converter since with rise of temperature maximum of spectral distribution drops to long waves of light guide. EFFECT: reduced temperature error of transducer. 1 cl, 1 dwg