气敏电极

/ qì mǐn diàn jí /

短语

1
本文介绍了电化学co传感器气敏电极催化活性降低的原因及其改善措施。
The cause that induces low catalytic activity of gas-sensitive electrode of electrochemical CO sensors and its improvement measures have been presented in this paper.
2
通过交流和直流反应溅射，我们以硅基片（表面上有白金加热电极）为基底制作H_2S气敏元件。
Through the technology of RF and DC reactive sputtering manufacture, H2S gas sensors have been developed on silicon substrate on which a heater made of Pt were attached.
3
由于加热电阻和电极及气敏层紧密的依次附着在隔热性能优异的衬底上，使得本发明的加热电阻的功耗明显降低。
And the heating resistance, electrodes and gas sensitive layer are tightly contacted on the liner with better thermal insulation ability to reduce the power consumption of the heating resistance.

气敏电极
敏化电极是对某些气体敏怒感的电极，是将离子选择性电极与另一种特殊的膜组成的复合电极，包括气敏电极酶电极两类。气敏电极是将指示电极(离子选择性电极)离子指示电板与参比电极装人同一个套管中，做成一个复合电极,实际上是一个化学电池。该电极由透气膜、内充溶液(中介溶液)、指示电极及参比电极等部分组成，其结构如图所示。待测气体通过透气膜进入内充溶液发生化学反应,产生指示电极响应的离子或使指示电极响应离子的浓度发生变化，通过电极电位变化反映待测气体的浓度。

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