科研之友
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摘要
A humidity sensor with a low temperature sensitivity is proposed and demonstrated by coating a nanocomposite hygrometer polyacrylamide in an open interferometric cavity of a fiber Fabry-Perot interferometer. In this paper the Fabry-Perot structure is formed by splicing one short section of single mode fiber between two sections of single mode fiber with a larger offset fusing method. Experimental results show that relative humidity (RH) sensitivity of the sensor is similar to 0.1 nm/(1% RH) in the range of 38% to 78% RH and similar to 5.868 nm/(1% RH) in the range of 88% to 98% RH, respectively.
- 出版日期2012-11-1
- 单位重庆大学
