科研之友
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摘要
At cryogenic temperature, a, fiber Bragg grating (FBG) temperature sensor with controllable sensitivity and variable measurement range is demonstrated by rising bimetal configuration. In experiments, sensitivities of -51.2, -86.4, and -520 pm/K are achieved by varying the lengths of the metals. Measurement ranges of 293 - 290.5. 283 - 280.5, and 259 - 256.5 K are achieved by shortening the distance of the gap among the metals.
- 出版日期2009-2-10
- 单位中国地震局
