提出了一种能改善气敏元件性能的新型取样电路，并对取样电路的特性作了理论分析和实验对比。
A new sample circuit is proposed in this paper to improve the properties of gas sensor, and the properties of sample circuits are analysed theoretically and compared experimentally.
以它为基体材料制备乙醇气敏元件，对其电阻随乙醇气浓度变化的特性进行了讨论。
It is also discussed that the characteristics of the change of resistance of the ethanol gas sensor based on this material with the change of the concentration of the ethanol gas.
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