一、為什么干手器能自動開關
自(zi)動(dong)(dong)(dong)(dong)開關(guan)是(shi)(shi)(shi)指(zhi)人(ren)體(ti)紅外智能感(gan)(gan)應(ying)(ying)開關(guan),是(shi)(shi)(shi)一(yi)種(zhong)當有人(ren)從(cong)(cong)紅外感(gan)(gan)應(ying)(ying)探測區域經過而自(zi)動(dong)(dong)(dong)(dong)啟動(dong)(dong)(dong)(dong)的(de)開關(guan)。那么(me)干(gan)手(shou)器(qi)(qi)原理是(shi)(shi)(shi)什么(me)呢?干(gan)手(shou)器(qi)(qi)能自(zi)動(dong)(dong)(dong)(dong)開關(guan)是(shi)(shi)(shi)因為(wei)在(zai)干(gan)手(shou)器(qi)(qi)內部(bu),安裝了(le)變(bian)容(rong)式(shi)自(zi)動(dong)(dong)(dong)(dong)感(gan)(gan)應(ying)(ying)電(dian)(dian)路(lu),由它(ta)(ta)控制著一(yi)個電(dian)(dian)橋(qiao)(qiao)(qiao)(qiao)平(ping)(ping)衡(heng)電(dian)(dian)路(lu)。電(dian)(dian)橋(qiao)(qiao)(qiao)(qiao)平(ping)(ping)衡(heng)電(dian)(dian)路(lu)由四(si)部(bu)分(fen)組成(cheng)(cheng),稱為(wei)四(si)個橋(qiao)(qiao)(qiao)(qiao)臂。變(bian)容(rong)式(shi)自(zi)動(dong)(dong)(dong)(dong)感(gan)(gan)應(ying)(ying)電(dian)(dian)路(lu)組成(cheng)(cheng)了(le)其中的(de)一(yi)個橋(qiao)(qiao)(qiao)(qiao)臂。它(ta)(ta)的(de)感(gan)(gan)應(ying)(ying)部(bu)分(fen),安裝在(zai)干(gan)手(shou)器(qi)(qi)的(de)出(chu)(chu)風(feng)口處。當濕手(shou)在(zai)風(feng)口下出(chu)(chu)現(xian)時,因為(wei)人(ren)體(ti)是(shi)(shi)(shi)導體(ti),也能形成(cheng)(cheng)電(dian)(dian)容(rong),于是(shi)(shi)(shi),使(shi)感(gan)(gan)應(ying)(ying)部(bu)分(fen)的(de)電(dian)(dian)容(rong)量(liang)發生變(bian)化(hua),立即使(shi)電(dian)(dian)橋(qiao)(qiao)(qiao)(qiao)電(dian)(dian)路(lu)中的(de)四(si)個橋(qiao)(qiao)(qiao)(qiao)臂的(de)量(liang)值,從(cong)(cong)平(ping)(ping)衡(heng)轉(zhuan)向(xiang)不(bu)平(ping)(ping)衡(heng)。原來(lai)(lai)在(zai)平(ping)(ping)衡(heng)狀(zhuang)態下,橋(qiao)(qiao)(qiao)(qiao)臂中能互相抵(di)消的(de)電(dian)(dian)流,不(bu)再抵(di)消,出(chu)(chu)現(xian)了(le)一(yi)股新的(de)電(dian)(dian)流。它(ta)(ta)能使(shi)吸鐵繼電(dian)(dian)器(qi)(qi)動(dong)(dong)(dong)(dong)作,接(jie)通風(feng)扇(shan)和電(dian)(dian)熱器(qi)(qi)上的(de)電(dian)(dian)源,就會有風(feng)吹出(chu)(chu)來(lai)(lai)。
二、干手器安裝高度
干手(shou)(shou)器的(de)安裝(zhuang)(zhuang)高度一般是在(zai)1.2m左(zuo)右,離洗手(shou)(shou)臺30-40cm遠。如果安裝(zhuang)(zhuang)在(zai)家中就要考(kao)慮(lv)使(shi)用(yong)人群,一般家用(yong)型的(de)掛(gua)式(shi)感(gan)受求可(ke)以根據家人的(de)平均身高來安裝(zhuang)(zhuang),如果有小孩(hai)可(ke)以選擇安裝(zhuang)(zhuang)落地式(shi)向上(shang)的(de)干手(shou)(shou)器。
三、干手器有輻射嗎
一般(ban)通電的(de)東西都會(hui)有電離輻(fu)射(she)的(de),只是(shi)輻(fu)射(she)大(da)小的(de)問題,干手器(qi)也是(shi)有輻(fu)射(she)的(de),不(bu)過不(bu)用(yong)擔心,畢竟它的(de)體(ti)量并不(bu)大(da),并且(qie)你只是(shi)使(shi)用(yong)不(bu)到半分鐘(zhong),基本不(bu)會(hui)被輻(fu)射(she)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質(zhi)量(liang)保障,以用起來舒(shu)適為宜。