Novel Fiber-Optic Distributed Strain and Temperature Sensor with Very High Resolution
نویسندگان
چکیده
A novel technique is proposed for measuring the distributed strain and temperature in a fiber with a very high resolution. This technique makes use of the jagged appearance of Rayleigh backscatter traces from a single-mode fiber measured by using a coherent OTDR with a precisely frequency-controlled light source. Our preliminary experiment indicated the possibility of measuring temperature with a resolution of better than 0.01◦C and a spatial resolution of one meter. This temperature resolution is two orders of magnitude better than that provided by Brillouinbased distributed sensors. key words: fiber-optic sensor, distributed sensor, strain sensor, temperature sensor, OTDR
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ورودعنوان ژورنال:
- IEICE Transactions
دوره 89-B شماره
صفحات -
تاریخ انتشار 2006