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Fiber grating-based sensing system with interferometric wavelength-shift detection
Fiber grating-based sensing system with interferometric wavelength-shift detection
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机译:基于光纤光栅的干涉式波长偏移检测系统
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摘要
A system for sensing a measurand field, the system comprising a source of broadband light, a sensor, an unbalanced optical interferometric apparatus, and a signal processor. The sensor produces an optical return signal having a wavelength functionally dependent on the measurand field. The interferometric apparatus produces an electrical interference output signal having a phase shift functionally dependent on the wavelength of the return signal, and the processor develops a processing signal indicative of the measurand field value.
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