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本文首先对甲烷气体传感器的工作原理进行了较详细的分析，并在实验中论证了方案的可行性，比较了它优于传统传感器的特点，最后文中从理论上分析了该传感器的最小可探测压强．
In this paper, the working principle of methane gas sensor is analyzed in detail, and the feasibility of the scheme is demonstrated experimentally. The characteristics of methane gas sensor are compared with those of traditional sensor. Finally, the minimum detectable pressure.