A capacitive proximity switch works with a high frequency oscillating circuit that creates an electromagnetic field on the active sensor surface by means of a capacitor.
阿电容式接近开关工程高的振荡电路，产生的积极传感器表面磁场的电磁通过一个电容手段的频率。
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They posses a high surface area for better electron transfer, which can lead to the improved performance of an electrode in an electric double capacitor or battery.