日本日产汽车公司上市一种用于汽车窗玻璃的自动刮水器,它能根据雨水的大小自动调节其速度。这种刮水器的原理是:开始下雨时,一种专门的传感器(其传感器用压电原理制成,能准确判断任何程度的雨情)会迅速地产生电压,其大小与雨滴入射的频率和大小成比例。再用这种 Japan’s Nissan Motor Co. launches an automatic wiper for car window glass that automatically adjusts its speed to rainwater. The principle of this wiper is that when it starts to rain, a special sensor whose sensor is made of piezoelectric principle and can accurately judge any degree of rain will rapidly generate voltage whose magnitude is related to the frequency of incidence of raindrops Proportional to size. Reuse this