Title :
A study of polarimetric fiber-optic interferometric temperature sensor
Author :
Ho, J.M. ; Chen, S.G.
Author_Institution :
Dept. of Electr. Eng., Chung-Yuan Univ., Chung-Li, Taiwan
Abstract :
Among the various fiber-optic sensors, the sensor based on interference technique has the highest sensitivity. However, the range of temperature measurement is limited by their periodic nature. The purpose of this research is to improve this situation, and still keep their high sensitivities. We use two interferometers with slightly different sensitivities simultaneously, and the relative phase differences between two fundamental modes in the fibers are measured to determine the temperature. The purpose of extending measurable temperature range is achieved by combining the output signals of those two interferometers.<>
Keywords :
fibre optic sensors; light interferometers; light polarisation; optical fibres; polarimetry; temperature measurement; fundamental modes; interference technique; interferometric temperature sensor; output signals; polarimetric fiber-optic sensor; relative phase differences; sensitivity; temperature measurement; temperature range; Optical fiber sensors; Optical interferometry; Optical refraction; Optical sensors; Optical variables control; Phase measurement; Phase shifting interferometry; Refractive index; Temperature distribution; Temperature sensors;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.328036
