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一、為什么干手器能自動開關

自動(dong)(dong)開(kai)關是(shi)指人體(ti)紅(hong)外(wai)智(zhi)能(neng)(neng)感(gan)應開(kai)關，是(shi)一(yi)種當(dang)有人從(cong)紅(hong)外(wai)感(gan)應探測區域經(jing)過而自動(dong)(dong)啟(qi)動(dong)(dong)的(de)開(kai)關。那么干(gan)(gan)手(shou)(shou)器(qi)原理是(shi)什么呢？干(gan)(gan)手(shou)(shou)器(qi)能(neng)(neng)自動(dong)(dong)開(kai)關是(shi)因為(wei)在(zai)干(gan)(gan)手(shou)(shou)器(qi)內部(bu)，安裝了(le)變容(rong)(rong)(rong)式(shi)自動(dong)(dong)感(gan)應電(dian)(dian)(dian)(dian)路(lu)(lu)，由它控制著一(yi)個(ge)電(dian)(dian)(dian)(dian)橋(qiao)平衡(heng)電(dian)(dian)(dian)(dian)路(lu)(lu)。電(dian)(dian)(dian)(dian)橋(qiao)平衡(heng)電(dian)(dian)(dian)(dian)路(lu)(lu)由四部(bu)分(fen)組成(cheng)(cheng)，稱為(wei)四個(ge)橋(qiao)臂。變容(rong)(rong)(rong)式(shi)自動(dong)(dong)感(gan)應電(dian)(dian)(dian)(dian)路(lu)(lu)組成(cheng)(cheng)了(le)其中(zhong)的(de)一(yi)個(ge)橋(qiao)臂。它的(de)感(gan)應部(bu)分(fen)，安裝在(zai)干(gan)(gan)手(shou)(shou)器(qi)的(de)出風(feng)(feng)口處。當(dang)濕手(shou)(shou)在(zai)風(feng)(feng)口下(xia)出現(xian)時，因為(wei)人體(ti)是(shi)導(dao)體(ti)，也能(neng)(neng)形成(cheng)(cheng)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)，于是(shi)，使(shi)感(gan)應部(bu)分(fen)的(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)量(liang)發生變化，立(li)即(ji)使(shi)電(dian)(dian)(dian)(dian)橋(qiao)電(dian)(dian)(dian)(dian)路(lu)(lu)中(zhong)的(de)四個(ge)橋(qiao)臂的(de)量(liang)值，從(cong)平衡(heng)轉向不(bu)平衡(heng)。原來在(zai)平衡(heng)狀態下(xia)，橋(qiao)臂中(zhong)能(neng)(neng)互相抵消的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)，不(bu)再抵消，出現(xian)了(le)一(yi)股新(xin)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)。它能(neng)(neng)使(shi)吸鐵(tie)繼電(dian)(dian)(dian)(dian)器(qi)動(dong)(dong)作，接(jie)通(tong)風(feng)(feng)扇和電(dian)(dian)(dian)(dian)熱(re)器(qi)上的(de)電(dian)(dian)(dian)(dian)源，就會有風(feng)(feng)吹出來。

二、干手器安裝高度

干手(shou)(shou)器(qi)的安裝(zhuang)(zhuang)(zhuang)高(gao)度一(yi)般(ban)是(shi)在1.2m左右，離洗手(shou)(shou)臺30-40cm遠。如果(guo)安裝(zhuang)(zhuang)(zhuang)在家中就(jiu)要考慮使(shi)用人(ren)群(qun)，一(yi)般(ban)家用型(xing)的掛(gua)式(shi)感(gan)受求可(ke)以根據家人(ren)的平(ping)均身高(gao)來安裝(zhuang)(zhuang)(zhuang)，如果(guo)有小孩可(ke)以選擇安裝(zhuang)(zhuang)(zhuang)落地式(shi)向上的干手(shou)(shou)器(qi)。

三、干手器有輻射嗎

一般通(tong)電的(de)東西都會有電離輻(fu)射(she)的(de)，只是輻(fu)射(she)大小(xiao)的(de)問題，干手器(qi)也是有輻(fu)射(she)的(de)，不(bu)過(guo)不(bu)用(yong)擔心，畢(bi)竟它(ta)的(de)體(ti)量并(bing)不(bu)大，并(bing)且你只是使用(yong)不(bu)到半分鐘，基本不(bu)會被(bei)輻(fu)射(she)所影(ying)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質(zhi)量保障，以用起來舒適為宜。