感應(ying)開關是(shi)一種(zhong)可(ke)自動(dong)感應(ying)某(mou)種(zhong)信號，從而控制開關的啟閉的智(zhi)能開關，感應(ying)開關的種(zhong)類主要(yao)有以下幾種(zhong)：

1、紅(hong)外(wai)感應開關(guan)

由紅外線(xian)探(tan)測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、紅外信(xin)號處理(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、信(xin)號輸出控制開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)幾組主要(yao)部(bu)分(fen)組成。紅外信(xin)號處理(li)集成主要(yao)完(wan)成紅外信(xin)號的(de)(de)處理(li)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)按(an)各(ge)部(bu)分(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)要(yao)求對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)中各(ge)分(fen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)分(fen)開進行單獨供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，保證電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)穩定性(xing)能(neng)，紅外感應開關具有探(tan)測(ce)距離遠，適用范圍廣泛，抗干擾能(neng)力強，工(gong)作性(xing)能(neng)穩定的(de)(de)優點。

2、人(ren)體感應開關

它是基于紅外(wai)線技術的自動控制產品，當有人(ren)(ren)(ren)進入感(gan)(gan)應范圍時，專用傳(chuan)感(gan)(gan)器探(tan)測到人(ren)(ren)(ren)體(ti)紅外(wai)光譜(pu)的變化(hua)，會自動接通負載(zai)，如果人(ren)(ren)(ren)不離(li)開感(gan)(gan)應范圍，負載(zai)將持續接通；當人(ren)(ren)(ren)離(li)開后，延時自動關閉負載(zai)。人(ren)(ren)(ren)到則燈亮，人(ren)(ren)(ren)離(li)則燈熄，親(qin)切方便，安全又(you)節能(neng)，更顯示出(chu)人(ren)(ren)(ren)性化(hua)關懷。

3、電(dian)磁感應開關

利用(yong)(yong)(yong)基(ji)礎的電磁感(gan)(gan)應(ying)(ying)原理，一般(ban)用(yong)(yong)(yong)于(yu)工業、住房等的電路(lu)控制。電磁感(gan)(gan)應(ying)(ying)開關(guan)是一種無觸點開關(guan)，也可以用(yong)(yong)(yong)于(yu)提升機、電梯等控制系統，以保(bao)證運行安全以及停(ting)位準確。它實際上是一個(ge)單(dan)穩(wen)態(tai)觸發器，無感(gan)(gan)應(ying)(ying)脈(mo)沖(chong)信號時電路(lu)處于(yu)穩(wen)態(tai)。

4、微波感應(ying)開關(guan)

微波感應器是利用(yong)多(duo)普(pu)勒原理，發射(she)和(he)接受高頻微波信號(hao)（準確感知物體的移動變化(hua)），通過(guo)信號(hao)放大(da)和(he)單片機程序智能(neng)識別，控制(zhi)負(fu)載燈具的開（點亮）與關（熄滅）。

5、光(guang)電(dian)感應開關

非接觸反射式(shi)感(gan)(gan)應(ying)，智能電腦檢測近(jin)距離反光(guang)物體（手掌），自動切換工作狀態，主動式(shi)紅外線工作方式(shi)，把手放(fang)在傳感(gan)(gan)器(qi)的指定(ding)部位0.5秒，開(kai)(kai)(kai)關(guan)(guan)接通(tong)（或(huo)斷(duan)開(kai)(kai)(kai)），并一直(zhi)保持該狀態；再次感(gan)(gan)應(ying)時(shi)，變(bian)為相反狀態，斷(duan)開(kai)(kai)(kai)（或(huo)接通(tong)）并一直(zhi)維持該狀態，可以穿透玻璃，特別適(shi)合廚房用櫥柜燈(deng)(deng)，在廚房安裝非接觸感(gan)(gan)應(ying)開(kai)(kai)(kai)關(guan)(guan)，可避免在做飯時(shi)用手開(kai)(kai)(kai)關(guan)(guan)燈(deng)(deng)具，而把開(kai)(kai)(kai)關(guan)(guan)面板上的細菌帶到飲(yin)食當中，具有穩定(ding)好，抗干擾強(qiang)，可防止太(tai)陽光(guang)的紅外線干擾，負(fu)載能力(li)廣。