| 摘要 |
<p>PURPOSE:To improve measuring accuracy by providing an interferometer part for supplying measuring laser light to a sensor fiber, also mixing said laser light and reflected light from the sensor fiber, and generating interference light. CONSTITUTION:An optical fiber temperature measuring device is provided with an interferometer part 12. Also, a base part of a sensor fiber 20 is fixed to this interferometer part 12, and this interferometer 12 is constituted so that prescribed measuring laser light 102 is supplied to the sensor fiber 20, also the measuring laser light 102 and reflected light 104 from the sensor fiber 20 are mixed, and interference light 106 is generated. In case of such a measuring device, it is not affected by an electric field and a magnetic field since electric parts are not contained in the interferometer part 12, and its measuring accuracy is improved.</p> |
