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介绍一种气敏探头的Rs－V_h特性的自动测量方法及电路原理。与传统测量方法相比不仅减轻测试劳动强度，而且提高了测量准确度。同时能获得一组用来描绘气敏探头初始电流脉冲数据。这对进一步揭示气敏探头的导电机理具有一定的意义。
An automatic measuring method and circuit principle of Rs-V_h characteristic of gas sensor probe are introduced. Compared with the traditional measurement methods not only reduce the labor intensity test, but also improve the measurement accuracy. At the same time, a group can be used to describe the gas sensor initial current pulse data. This is of great significance to further reveal the conductivity mechanism of the gas sensor.