Fibre-optic thermometer using semiconductor-etalon sensor
Abstract
A fiber-optic thermometer is described which uses a thick-film SiC sensing etalon. The etalon's temperature-dependent phase shift is determined by analyzing its spectral reflectance, using an LED and a tunable Michelson interferometer. Temperatures from 20 to 1000 C are measured with better than 0.5 deg C resolution.
- Publication:
-
Electronics Letters
- Pub Date:
- February 1986
- DOI:
- 10.1049/el:19860163
- Bibcode:
- 1986ElL....22..238B
- Keywords:
-
- Fabry-Perot Interferometers;
- Fiber Optics;
- Semiconductor Devices;
- Temperature Sensors;
- Thermometers;
- Light Emitting Diodes;
- Michelson Interferometers;
- Optical Paths;
- Phase Shift;
- Silicon Carbides;
- Instrumentation and Photography