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本发明涉及一种微型传感器的电极板。众所周知由于甲醇汽油的特性,电极层直接与甲醇汽油接触会造成漏电等,使得电容品质因数下降,造成电极难以工作或造成很大的测量误差,还导致电极板的灵敏度降低,而且金属棒状传感器加工较困难,成本也较高。一种微型传感器的电极板,包括电极板本体,其特征在于:电极板本体包括由上往下依次设置的防腐层、电极层和等电位层,电极板本体的底部和侧部设置有屏蔽层;电极层、等电位层和屏蔽层上分别设置有焊盘,电极层通过焊盘和屏蔽层连接。本发明可用于任何液态介质的检测,结构简单,体积较小携带使用方便。
The present invention relates to an electrode plate for a micro sensor. It is well-known that due to the characteristics of methanol gasoline, the contact of the electrode layer with methanol gasoline will cause leakage, etc., causing the quality factor of the capacitor to drop, resulting in difficulty of the electrode or great measurement error, More difficult, the cost is higher. An electrode plate of a miniature sensor includes an electrode plate body, wherein the electrode plate body comprises a coating layer, an electrode layer and an equipotential layer sequentially arranged from top to bottom, the bottom and the side of the electrode plate body are provided with a shielding layer The electrode layer, the equipotential layer and the shielding layer are respectively provided with a pad, and the electrode layer is connected with the shielding layer through the pad. The invention can be used for testing any liquid medium, has the advantages of simple structure, small size and convenient carrying.