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一、為什么干手器能自動開關

自(zi)(zi)動(dong)(dong)開(kai)關(guan)(guan)是指人體紅(hong)外(wai)智(zhi)能(neng)感應(ying)(ying)開(kai)關(guan)(guan)，是一(yi)種(zhong)當(dang)有(you)人從紅(hong)外(wai)感應(ying)(ying)探測區域(yu)經(jing)過而自(zi)(zi)動(dong)(dong)啟動(dong)(dong)的(de)(de)開(kai)關(guan)(guan)。那么干手器(qi)原理是什(shen)么呢？干手器(qi)能(neng)自(zi)(zi)動(dong)(dong)開(kai)關(guan)(guan)是因(yin)為(wei)(wei)在(zai)(zai)干手器(qi)內部(bu)，安裝了(le)變(bian)(bian)(bian)容式自(zi)(zi)動(dong)(dong)感應(ying)(ying)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)，由它(ta)控制著一(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)橋(qiao)(qiao)平衡電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)。電(dian)(dian)(dian)(dian)(dian)(dian)橋(qiao)(qiao)平衡電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)由四(si)部(bu)分組(zu)(zu)成，稱為(wei)(wei)四(si)個橋(qiao)(qiao)臂(bei)(bei)。變(bian)(bian)(bian)容式自(zi)(zi)動(dong)(dong)感應(ying)(ying)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)組(zu)(zu)成了(le)其中(zhong)的(de)(de)一(yi)個橋(qiao)(qiao)臂(bei)(bei)。它(ta)的(de)(de)感應(ying)(ying)部(bu)分，安裝在(zai)(zai)干手器(qi)的(de)(de)出(chu)風口(kou)處。當(dang)濕手在(zai)(zai)風口(kou)下出(chu)現時，因(yin)為(wei)(wei)人體是導體，也(ye)能(neng)形成電(dian)(dian)(dian)(dian)(dian)(dian)容，于是，使感應(ying)(ying)部(bu)分的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容量發(fa)生變(bian)(bian)(bian)化，立即(ji)使電(dian)(dian)(dian)(dian)(dian)(dian)橋(qiao)(qiao)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)的(de)(de)四(si)個橋(qiao)(qiao)臂(bei)(bei)的(de)(de)量值，從平衡轉(zhuan)向(xiang)不(bu)平衡。原來(lai)在(zai)(zai)平衡狀(zhuang)態下，橋(qiao)(qiao)臂(bei)(bei)中(zhong)能(neng)互相抵消的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，不(bu)再抵消，出(chu)現了(le)一(yi)股新的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。它(ta)能(neng)使吸鐵繼電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)動(dong)(dong)作，接通風扇和電(dian)(dian)(dian)(dian)(dian)(dian)熱器(qi)上(shang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源，就會有(you)風吹出(chu)來(lai)。

二、干手器安裝高度

干手器的安裝高度一(yi)般是在1.2m左右，離洗手臺30-40cm遠。如果(guo)(guo)安裝在家(jia)中(zhong)就要考慮使用人群，一(yi)般家(jia)用型的掛式感受(shou)求可以(yi)根據家(jia)人的平均身高來安裝，如果(guo)(guo)有小孩可以(yi)選擇安裝落地式向(xiang)上的干手器。

三、干手器有輻射嗎

一般通電(dian)的(de)(de)東西(xi)都(dou)會有電(dian)離輻(fu)射的(de)(de)，只(zhi)是輻(fu)射大小的(de)(de)問題，干(gan)手器也是有輻(fu)射的(de)(de)，不(bu)(bu)過不(bu)(bu)用擔心(xin)，畢竟它的(de)(de)體(ti)量并(bing)不(bu)(bu)大，并(bing)且你(ni)只(zhi)是使用不(bu)(bu)到半(ban)分鐘(zhong)，基本不(bu)(bu)會被輻(fu)射所影響。

四、如何挑選干手器

挑選干手器主要根據自己的需要和環境等情況來決定是選以風為主熱量為輔的風量型的干手器，還是以熱量為主的熱風型干手器。此外，還需要考慮到干手器的外殼材質、重量、顏色、啟動原理、安裝方式、工作噪音、運行功率、干手時風溫等參數。購買的干手器品牌要有(you)質量保障，以(yi)用起來舒適為宜。