OPTICAL FIBER HYDROGEN SENSOR, AND OPTICAL FIBER HYDROGEN SENSOR SYSTEM WITH THE SAME

摘要

PPROBLEM TO BE SOLVED: To compensate for the temperature dependency of a hydrogen-sensitive element in an optical fiber hydrogen sensor, and to achieve a compact transducer part. PSOLUTION: The optical fiber hydrogen sensor S includes an optical fiber 1 for sensing light for transmitting sensing light; the hydrogen-sensitive element 41 for receiving and transmitting sensing light from the optical fiber 1 for sensing light, the transducer part 4 having a reflector 43 for receiving and reflecting sensing light transmitted through the hydrogen-sensitive element 41, an optical fiber 2 for signal light for receiving and transmitting, as signal light, sensing light reflected by the reflector 43 of the transducer part 4 and transmitted through the hydrogen-sensitive element 41 again, and an optical fiber 3 for temperature-compensating light for transmitting temperature-compensating light for compensating for the temperature dependency of the sensitivity of the hydrogen-sensitive element 41. The optical fiber 3 for temperature-compensating light is provided in such a way as to irradiate the hydrogen-sensitive element 41 of the transducer part 4 with temperature-compensating light. PCOPYRIGHT: (C)2011,JPO&INPIT