The invention relates to a fiber-optic temperature sensor which is provided with a preferably spherical microparticle with a diameter in the range of from 5 to 100 micrometers as the optical resonator. Said microparticle is linked with optical waveguides for coupling light in or out. A laser diode (1) incites optical resonances in the microparticle, the wavelengths of these resonances depending on the diameter of the microparticle. Due to the thermal expansion of the microparticle, said diameter in turn depends on the temperature. The temperature sensor is calibrated so that the resonance wavelengths can be correlated with corresponding temperature values.
申请公布号
WO0144768(A1)
申请公布日期
2001.06.21
申请号
WO2000EP12466
申请日期
2000.12.09
申请人
RUBITEC GESELLSCHAFT FUER INNOVATION UND TECHNOLOGIE DER RUHR-UNIVERSITAET BOCHUM MBH;SCHWEIGER, GUSTAV;JANETTA, FRANK