汽车上的雨水感应器十分聪明有用,它的工作原理是,从车内照射红外线光束到前挡风玻璃上,当玻璃是湿的时候,反射到传感器上的光线就会减少,进而感应器激活并控制系统开启雨刷。然而再聪明也有不好使的时候。很多驾驶员都有过在雨天高速路上超过一辆重型卡车,超车过程中大货车溅起的雨水打到挡风 The rain sensor on the car is very smart and useful. It works by irradiating the infrared light beam from the car to the front windshield. When the glass is wet, the light reflected on the sensor will be reduced, and the sensor will be activated And control the system to turn on the wipers. However, there are times when things are not smart enough. Many drivers have had more than one heavy truck on a rainy day over the highway