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Proximity Sensor | 接近传感器

A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. It does this by emitting an electromagnetic field or a beam of electromagnetic radiation (infrared, for instance), and looks for changes in the field or return signal. The object being sensed is often referred to as the proximity sensor's target.

 

接近传感器是一种能够在没有任何物理接触的情况下检测附近物体的存在的传感器。 它通过发射一个电磁场或一束电磁辐射（例如红外线）来实现这一点，并且寻找场中的变化或返回信号。 被感测的物体通常被称为接近传感器的目标。

 

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