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Proceedings Paper

Novel method of optical fiber temperature measurement: measuring the inner temperature of the cage motor in starting
Author(s): Danping Jia; Wei Lin; YinWen Lin
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Paper Abstract

Although the development of fluorescent fiber optic temperature measurement technology have overcome the difficulty of the surface temperature distribution measurement of a rotor of electric machine. The temperature of the conductor (or magnetic) strips which are buried under the surface of the rotor yet not be resolved. A new measuring scheme of fluorescent optical fiber is presented in this paper. It is fully suitable for the above measuring demands. Several fiber probes are assembled with the rotor. The sensor heads are buried under the rotor surface to touch the measuring points. The other ends of the fiber probes are terminated on an optical rotational coupling disc. The induced temperature signals then are sequentially transmitted out to the external of the rotor by another fix fiber. Finally the temperature of the strips is obtained. In this paper we will discuss the selection of light source, the design of light path and derive the theory analysis of dynamic coupling.

Paper Details

Date Published: 3 October 2000
PDF: 4 pages
Proc. SPIE 4220, Advanced Photonic Sensors: Technology and Applications, (3 October 2000); doi: 10.1117/12.401715
Show Author Affiliations
Danping Jia, Shenyang Univ. of Technology (China)
Wei Lin, Shenyang Univ. of Technology (China)
YinWen Lin, Shenyang Univ. of Technology (China)

Published in SPIE Proceedings Vol. 4220:
Advanced Photonic Sensors: Technology and Applications
Jinfa Tang; Chao-Nan Xu; Haizhang Li, Editor(s)

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