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如今,城市中许多小区的楼道里都安装了声控灯,人们夜晚进入漆黑的楼道时,只要拍拍手或者跺跺脚,楼道灯自动就亮了。声控灯的关键器件是电路里的“小话筒”——声传感器。声传感器能将声波以电信号的形式输出,电信号经过专用的芯片处理就可以控制电子开关。其实,声控灯应该叫声光控灯。光线充足时,你就是放鞭炮,它也不亮。原来声控灯中还有一个检测光线的光传感器,所以声控灯的控制盒实际上是声、光同时控制的。
Nowadays, sound-control lights are installed in the corridors of many districts in the city. When people enter the dark corridor at night, they simply light up their hands or stomping their feet. The corridor lights automatically light up. The key component of a voice-activated lamp is the “small microphone” -sound sensor in the circuit. Acoustic sensors can sound waves in the form of electrical signals, electrical signals through a dedicated chip processing can control the electronic switch. In fact, the sound control lights should be called sound and light control. When the light is abundant, you are firecrackers, it is not bright. The original sound control lights there is a light sensor light detection, so the sound control of the control box is actually sound, light at the same time control.