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介绍了几类化学量光纤传感器的简单原理。用国产元件建立了一个测量大气中甲烷气体浓度的实验装置,该装置的测量灵敏度约为7000ppm,是甲烷气体在大气中最低爆炸极限的13％。
Several simple principles of chemical quantity optical fiber sensors are introduced. An experimental device for measuring the concentration of methane in the atmosphere was established with domestic components. The measurement sensitivity of this device is about 7000ppm, which is 13% of the minimum explosion limit of methane gas in the atmosphere.