The rain sensor is a highly versatile device for automatic wiping of vehicle windscreen when it is wet due tomoisture , raindrop or even mud . it works by reflecting harmonious lightbeams with in a windsceen . when raindrops fall onto the windscreen , this harmony is disturbed , creating a drop in the lightbeam intensity . the system then activates the wipers to operate in fully automatic 汽車智能雨刮雨水傳感器是一種高科技的光電技術(shù)產(chǎn)品,安裝在前擋風(fēng)玻璃后面,利用光學(xué)原理,采用先進(jìn)的光電轉(zhuǎn)換技術(shù),對汽車前擋風(fēng)玻璃上的雨水、霧水、雪水進(jìn)行探測判斷,采集數(shù)據(jù),經(jīng)微電腦計算,準(zhǔn)確判斷后,根據(jù)雨量大小,完全自動地控制雨刮及雨刮快慢。