noncontacting proximity sensor

例句：

1. 1.This sensor is designed to detect the presence of people in a room without physical contact.
   这个传感器设计用来在不接触的情况下检测房间内人员的存在。
2. 2.The non-contacting sensors are used in various applications, including security systems and medical devices.
   各种应用中使用的非接触式传感器，包括安全系统和医疗设备。
3. 3.Due to its non-contacting nature, this sensor can be used in environments where direct contact with objects is not possible.
   由于其非接触性质，这种传感器可以在无法直接接触物体的环境中使用。