The fiber-optic microampere current sensor used two metal-coated single mode optical fibers to detect the current when it pass through the coated part which existing a thermal resistance effect.When the optical fiber experience temperature change,variation of the phase shift would be incurred by the change of refractive index and geometric structure of the fiber.Then we can observe the phase amplitude to know the input current.Besides we combine the all-fiber
Michelson interferometer with the Faraday rotator mirror to build up a polarization-insensitive structure.Final using the phase-generated carrier technique(PGC) to stabilize demodulate the phase signal.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0813101-132859 |
| Date | 13 August 2001 |
| Creators | Chou, Ming-Chieh |
| Contributors | Mao-Xiong Chen, Yan-Kuin Su, Wood-Hai Cheng, Shih-Chu Huang, Wuu-Wen Lin |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0813101-132859 |
| Rights | unrestricted, Copyright information available at source archive |
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