一、為什么干手器能自動開關
自(zi)動(dong)(dong)開(kai)(kai)關是(shi)(shi)指人體紅外智能(neng)(neng)感(gan)應(ying)開(kai)(kai)關,是(shi)(shi)一(yi)種當(dang)有人從(cong)紅外感(gan)應(ying)探測區域經過而自(zi)動(dong)(dong)啟動(dong)(dong)的開(kai)(kai)關。那么(me)干手(shou)器(qi)(qi)(qi)原(yuan)理是(shi)(shi)什么(me)呢?干手(shou)器(qi)(qi)(qi)能(neng)(neng)自(zi)動(dong)(dong)開(kai)(kai)關是(shi)(shi)因(yin)為(wei)在干手(shou)器(qi)(qi)(qi)內部,安(an)裝了(le)變(bian)容(rong)式自(zi)動(dong)(dong)感(gan)應(ying)電(dian)(dian)(dian)路(lu)(lu)(lu)(lu),由它(ta)控制著一(yi)個電(dian)(dian)(dian)橋(qiao)平(ping)(ping)衡電(dian)(dian)(dian)路(lu)(lu)(lu)(lu)。電(dian)(dian)(dian)橋(qiao)平(ping)(ping)衡電(dian)(dian)(dian)路(lu)(lu)(lu)(lu)由四部分組(zu)(zu)成(cheng)(cheng)(cheng),稱為(wei)四個橋(qiao)臂。變(bian)容(rong)式自(zi)動(dong)(dong)感(gan)應(ying)電(dian)(dian)(dian)路(lu)(lu)(lu)(lu)組(zu)(zu)成(cheng)(cheng)(cheng)了(le)其中的一(yi)個橋(qiao)臂。它(ta)的感(gan)應(ying)部分,安(an)裝在干手(shou)器(qi)(qi)(qi)的出(chu)風(feng)口處。當(dang)濕手(shou)在風(feng)口下出(chu)現時,因(yin)為(wei)人體是(shi)(shi)導體,也能(neng)(neng)形成(cheng)(cheng)(cheng)電(dian)(dian)(dian)容(rong),于是(shi)(shi),使感(gan)應(ying)部分的電(dian)(dian)(dian)容(rong)量(liang)(liang)發生變(bian)化,立即使電(dian)(dian)(dian)橋(qiao)電(dian)(dian)(dian)路(lu)(lu)(lu)(lu)中的四個橋(qiao)臂的量(liang)(liang)值(zhi),從(cong)平(ping)(ping)衡轉向(xiang)不平(ping)(ping)衡。原(yuan)來在平(ping)(ping)衡狀態下,橋(qiao)臂中能(neng)(neng)互相(xiang)抵消的電(dian)(dian)(dian)流,不再抵消,出(chu)現了(le)一(yi)股新的電(dian)(dian)(dian)流。它(ta)能(neng)(neng)使吸鐵繼(ji)電(dian)(dian)(dian)器(qi)(qi)(qi)動(dong)(dong)作,接通風(feng)扇和(he)電(dian)(dian)(dian)熱器(qi)(qi)(qi)上的電(dian)(dian)(dian)源(yuan),就會有風(feng)吹出(chu)來。
二、干手器安裝高度
干手器的(de)(de)安(an)裝(zhuang)高度一般是在(zai)1.2m左右,離(li)洗(xi)手臺30-40cm遠。如(ru)果安(an)裝(zhuang)在(zai)家中(zhong)就要考慮使用人(ren)群,一般家用型(xing)的(de)(de)掛式感受求可以根據家人(ren)的(de)(de)平均身高來安(an)裝(zhuang),如(ru)果有小孩可以選擇安(an)裝(zhuang)落地式向(xiang)上的(de)(de)干手器。
三、干手器有輻射嗎
一般通電的(de)東(dong)西都會有電離輻(fu)(fu)(fu)射的(de),只是輻(fu)(fu)(fu)射大小的(de)問題,干手(shou)器(qi)也是有輻(fu)(fu)(fu)射的(de),不(bu)過不(bu)用(yong)擔心(xin),畢竟它(ta)的(de)體量并不(bu)大,并且你只是使(shi)用(yong)不(bu)到半分鐘,基(ji)本不(bu)會被輻(fu)(fu)(fu)射所(suo)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量(liang)保(bao)障,以用起來舒適為宜(yi)。