一、為什么干手器能自動開關
自動(dong)開關(guan)是(shi)指(zhi)人體(ti)(ti)紅(hong)外(wai)智(zhi)能感(gan)(gan)(gan)應(ying)開關(guan),是(shi)一種當有(you)人從(cong)紅(hong)外(wai)感(gan)(gan)(gan)應(ying)探測區(qu)域經過而自動(dong)啟動(dong)的(de)開關(guan)。那么干手(shou)器(qi)原理(li)是(shi)什么呢?干手(shou)器(qi)能自動(dong)開關(guan)是(shi)因(yin)為(wei)在(zai)干手(shou)器(qi)內部(bu),安裝了(le)變(bian)容式(shi)(shi)自動(dong)感(gan)(gan)(gan)應(ying)電(dian)(dian)(dian)路(lu),由(you)它(ta)(ta)控制著一個(ge)電(dian)(dian)(dian)橋(qiao)平衡(heng)電(dian)(dian)(dian)路(lu)。電(dian)(dian)(dian)橋(qiao)平衡(heng)電(dian)(dian)(dian)路(lu)由(you)四部(bu)分組(zu)成,稱為(wei)四個(ge)橋(qiao)臂(bei)(bei)。變(bian)容式(shi)(shi)自動(dong)感(gan)(gan)(gan)應(ying)電(dian)(dian)(dian)路(lu)組(zu)成了(le)其中(zhong)的(de)一個(ge)橋(qiao)臂(bei)(bei)。它(ta)(ta)的(de)感(gan)(gan)(gan)應(ying)部(bu)分,安裝在(zai)干手(shou)器(qi)的(de)出(chu)風(feng)口(kou)處。當濕(shi)手(shou)在(zai)風(feng)口(kou)下出(chu)現(xian)時,因(yin)為(wei)人體(ti)(ti)是(shi)導體(ti)(ti),也(ye)能形成電(dian)(dian)(dian)容,于是(shi),使感(gan)(gan)(gan)應(ying)部(bu)分的(de)電(dian)(dian)(dian)容量(liang)發生變(bian)化,立即使電(dian)(dian)(dian)橋(qiao)電(dian)(dian)(dian)路(lu)中(zhong)的(de)四個(ge)橋(qiao)臂(bei)(bei)的(de)量(liang)值,從(cong)平衡(heng)轉向(xiang)不平衡(heng)。原來在(zai)平衡(heng)狀態下,橋(qiao)臂(bei)(bei)中(zhong)能互(hu)相(xiang)抵消的(de)電(dian)(dian)(dian)流,不再抵消,出(chu)現(xian)了(le)一股新(xin)的(de)電(dian)(dian)(dian)流。它(ta)(ta)能使吸(xi)鐵繼電(dian)(dian)(dian)器(qi)動(dong)作,接通風(feng)扇和電(dian)(dian)(dian)熱器(qi)上的(de)電(dian)(dian)(dian)源,就會有(you)風(feng)吹出(chu)來。
二、干手器安裝高度
干(gan)(gan)手(shou)(shou)器的(de)安(an)裝(zhuang)(zhuang)高度一般是在1.2m左右,離洗手(shou)(shou)臺30-40cm遠。如果(guo)安(an)裝(zhuang)(zhuang)在家(jia)中(zhong)就要(yao)考慮使(shi)用人群,一般家(jia)用型的(de)掛式感受求可以根據家(jia)人的(de)平均(jun)身高來安(an)裝(zhuang)(zhuang),如果(guo)有小孩可以選擇安(an)裝(zhuang)(zhuang)落地式向(xiang)上的(de)干(gan)(gan)手(shou)(shou)器。
三、干手器有輻射嗎
一般通電的東(dong)西都會有電離輻射的,只(zhi)是輻射大(da)小的問題,干手(shou)器也是有輻射的,不(bu)過不(bu)用擔心,畢竟它的體量并不(bu)大(da),并且你只(zhi)是使用不(bu)到半分鐘(zhong),基本不(bu)會被輻射所(suo)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質(zhi)量保障,以用起來(lai)舒(shu)適為宜(yi)。