單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)體只(zhi)能(neng)沿進水口(kou)(kou)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)，出水口(kou)(kou)介質卻無法(fa)(fa)回(hui)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)，俗稱單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)又(you)(you)稱止回(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)或(huo)逆止閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。用(yong)于液壓(ya)(ya)(ya)系統(tong)中防(fang)止油(you)(you)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong),或(huo)者用(yong)于氣(qi)(qi)動(dong)(dong)系統(tong)中防(fang)止壓(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)逆向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)直(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)(shi)和直(zhi)(zhi)角(jiao)式(shi)(shi)(shi)(shi)兩(liang)種。直(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)用(yong)螺紋(wen)(wen)連(lian)(lian)接(jie)安裝在(zai)(zai)(zai)管(guan)路(lu)(lu)上。直(zhi)(zhi)角(jiao)式(shi)(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)螺紋(wen)(wen)連(lian)(lian)接(jie)、板式(shi)(shi)(shi)(shi)連(lian)(lian)接(jie)和法(fa)(fa)蘭連(lian)(lian)接(jie)三(san)種形式(shi)(shi)(shi)(shi)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)直(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)(shi)和直(zhi)(zhi)角(jiao)式(shi)(shi)(shi)(shi)兩(liang)種。直(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)用(yong)螺紋(wen)(wen)連(lian)(lian)接(jie)安裝在(zai)(zai)(zai)管(guan)路(lu)(lu)上。直(zhi)(zhi)角(jiao)式(shi)(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)螺紋(wen)(wen)連(lian)(lian)接(jie)、板式(shi)(shi)(shi)(shi)連(lian)(lian)接(jie)和法(fa)(fa)蘭連(lian)(lian)接(jie)三(san)種形式(shi)(shi)(shi)(shi)。液控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)也(ye)稱閉(bi)(bi)鎖(suo)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)或(huo)保壓(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，它與(yu)(yu)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)相(xiang)同(tong)，用(yong)以(yi)防(fang)止油(you)(you)液反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)。但在(zai)(zai)(zai)液壓(ya)(ya)(ya)回(hui)路(lu)(lu)中需要(yao)油(you)(you)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)時又(you)(you)可利用(yong)控(kong)制(zhi)(zhi)(zhi)油(you)(you)壓(ya)(ya)(ya)，打開(kai)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，使(shi)油(you)(you)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)在(zai)(zai)(zai)兩(liang)個方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)都可流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)。液控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)采用(yong)錐形閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯，因此密封(feng)性能(neng)好。在(zai)(zai)(zai)要(yao)求封(feng)閉(bi)(bi)油(you)(you)路(lu)(lu)時，可用(yong)此閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)作(zuo)(zuo)為油(you)(you)路(lu)(lu)的單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)鎖(suo)緊(jin)而(er)起保壓(ya)(ya)(ya)作(zuo)(zuo)用(yong)。液控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)控(kong)制(zhi)(zhi)(zhi)油(you)(you)的泄(xie)漏方(fang)式(shi)(shi)(shi)(shi)有(you)內泄(xie)式(shi)(shi)(shi)(shi)和外(wai)泄(xie)式(shi)(shi)(shi)(shi)二種。在(zai)(zai)(zai)油(you)(you)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)出口(kou)(kou)無背壓(ya)(ya)(ya)的油(you)(you)路(lu)(lu)中可用(yong)內泄(xie)式(shi)(shi)(shi)(shi)；否則需用(yong)外(wai)泄(xie)式(shi)(shi)(shi)(shi)，以(yi)降低控(kong)制(zhi)(zhi)(zhi)油(you)(you)壓(ya)(ya)(ya)力(li)(li)(li)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)只(zhi)能(neng)一個方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)而(er)不能(neng)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)的方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)控(kong)制(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。其工(gong)作(zuo)(zuo)原(yuan)理與(yu)(yu)液壓(ya)(ya)(ya)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)一樣。壓(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)從P口(kou)(kou)進入，克服彈簧(huang)力(li)(li)(li)和摩擦力(li)(li)(li)使(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)開(kai)啟，壓(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)從P流(liu)(liu)(liu)(liu)(liu)(liu)(liu)至A；當P口(kou)(kou)無壓(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)時，在(zai)(zai)(zai)彈簧(huang)力(li)(li)(li)和A口(kou)(kou)(腔)余氣(qi)(qi)力(li)(li)(li)作(zuo)(zuo)用(yong)下(xia)；閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)處于關閉(bi)(bi)狀(zhuang) 態(tai)，使(shi)從A至P氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)不通(tong)(tong)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)應用(yong)于不允許氣(qi)(qi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)反(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)動(dong)(dong)的場合，如空(kong)(kong)壓(ya)(ya)(ya)機向(xiang)(xiang)(xiang)(xiang)(xiang)氣(qi)(qi)罐(guan)充(chong)氣(qi)(qi) 時，在(zai)(zai)(zai)空(kong)(kong)壓(ya)(ya)(ya)機與(yu)(yu)氣(qi)(qi)罐(guan)之間(jian)設置一單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，當空(kong)(kong)壓(ya)(ya)(ya)機停止工(gong)作(zuo)(zuo)時，可防(fang)止氣(qi)(qi)罐(guan)中的壓(ya)(ya)(ya)縮(suo)空(kong)(kong)氣(qi)(qi)回(hui)流(liu)(liu)(liu)(liu)(liu)(liu)(liu) 到空(kong)(kong)壓(ya)(ya)(ya)機。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)還(huan)常與(yu)(yu)節流(liu)(liu)(liu)(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、順序(xu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)等組合成單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)節流(liu)(liu)(liu)(liu)(liu)(liu)(liu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)順序(xu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)使(shi)用(yong)。

壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)(yong)高(gao)精(jing)(jing)度(du)(du)、高(gao)穩定性能(neng)(neng)的(de)(de)(de)(de)(de)壓(ya)(ya)力(li)(li)(li)傳感器和(he)變(bian)送電(dian)路(lu)，再經(jing)(jing) CPU模塊化(hua)(hua)信(xin)(xin)號(hao)處(chu)理(li)技(ji)術，實現(xian)對介質壓(ya)(ya)力(li)(li)(li)信(xin)(xin)號(hao)的(de)(de)(de)(de)(de)檢測(ce)、顯示、報(bao)警和(he)控(kong)制(zhi)(zhi)信(xin)(xin)號(hao)輸出(chu)。壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)可以(yi)廣(guang)泛用(yong)(yong)(yong)(yong)于(yu)石油(you)、化(hua)(hua)工、冶金、電(dian)力(li)(li)(li)、供(gong)水(shui)等(deng)領(ling)(ling)域中對各種氣(qi)體、液(ye)(ye)(ye)體的(de)(de)(de)(de)(de)表壓(ya)(ya)、絕壓(ya)(ya)的(de)(de)(de)(de)(de)測(ce)量(liang)控(kong)制(zhi)(zhi)，是(shi)工業(ye)現(xian)場理(li)想的(de)(de)(de)(de)(de)智(zhi)能(neng)(neng)化(hua)(hua)測(ce)控(kong)儀(yi)表。壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)是(shi)與電(dian)器開(kai)(kai)關(guan)(guan)(guan)(guan)相結合的(de)(de)(de)(de)(de)裝置(zhi)(zhi)，當(dang)到達(da)預(yu)先(xian)設定的(de)(de)(de)(de)(de)流(liu)體壓(ya)(ya)力(li)(li)(li)時(shi)(shi)，開(kai)(kai)關(guan)(guan)(guan)(guan)接點動(dong)作(zuo)。主要應用(yong)(yong)(yong)(yong)于(yu)電(dian)廠(chang)、石化(hua)(hua)、冶金行業(ye)等(deng)工業(ye)設備(bei)上輸出(chu)報(bao)警或控(kong)制(zhi)(zhi)信(xin)(xin)號(hao)，在工業(ye)領(ling)(ling)域中有著重要的(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)途(tu)，能(neng)(neng)預(yu)防生(sheng)(sheng)產工程中重要裝置(zhi)(zhi)的(de)(de)(de)(de)(de)損壞，避(bi)免(mian)了(le)重大(da)生(sheng)(sheng)產事(shi)故地(di)發生(sheng)(sheng)。電(dian)子(zi)壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)是(shi)通過高(gao)精(jing)(jing)度(du)(du)儀(yi)表放(fang)大(da)器放(fang)大(da)壓(ya)(ya)力(li)(li)(li)信(xin)(xin)號(hao)，通過高(gao)速(su)MCU采集并處(chu)理(li)數據，內置(zhi)(zhi)精(jing)(jing)密傳感器進行補償，是(shi)檢測(ce)壓(ya)(ya)力(li)(li)(li)、液(ye)(ye)(ye)位(wei)(wei)信(xin)(xin)號(hao)，實現(xian)壓(ya)(ya)力(li)(li)(li)、液(ye)(ye)(ye)位(wei)(wei)監測(ce)和(he)控(kong)制(zhi)(zhi)的(de)(de)(de)(de)(de)高(gao)精(jing)(jing)度(du)(du)設備(bei)。廣(guang)泛使用(yong)(yong)(yong)(yong)在化(hua)(hua)工、機(ji)械、水(shui)文、電(dian)力(li)(li)(li)、環保等(deng)測(ce)量(liang)氣(qi)體、液(ye)(ye)(ye)體壓(ya)(ya)力(li)(li)(li)的(de)(de)(de)(de)(de)自(zi)(zi)動(dong)化(hua)(hua)系(xi)統(tong)中。因為調節(jie)方便靈活，安裝簡(jian)單(dan)(dan)，可以(yi)替代大(da)部分(fen)使用(yong)(yong)(yong)(yong)液(ye)(ye)(ye)位(wei)(wei)開(kai)(kai)關(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)場合.壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)工作(zuo)原理(li)：是(shi)當(dang)系(xi)統(tong)內壓(ya)(ya)力(li)(li)(li)高(gao)于(yu)或低于(yu)額定的(de)(de)(de)(de)(de)安全壓(ya)(ya)力(li)(li)(li)時(shi)(shi)，感應器內碟片瞬時(shi)(shi)發生(sheng)(sheng)移動(dong)，通過連(lian)接導桿推動(dong)開(kai)(kai)關(guan)(guan)(guan)(guan)接頭接通或斷(duan)開(kai)(kai)，當(dang)壓(ya)(ya)力(li)(li)(li)降至或升額定的(de)(de)(de)(de)(de)恢復值時(shi)(shi)，碟片瞬時(shi)(shi)復位(wei)(wei)，開(kai)(kai)關(guan)(guan)(guan)(guan)自(zi)(zi)動(dong)復位(wei)(wei)，或者簡(jian)單(dan)(dan)的(de)(de)(de)(de)(de)說(shuo)是(shi)當(dang)被測(ce)壓(ya)(ya)力(li)(li)(li)超過額定值時(shi)(shi)，彈性元(yuan)件(jian)的(de)(de)(de)(de)(de)自(zi)(zi)由端產生(sheng)(sheng)位(wei)(wei)移，直(zhi)接或經(jing)(jing)過比較后(hou)推動(dong)開(kai)(kai)關(guan)(guan)(guan)(guan)元(yuan)件(jian)，改變(bian)開(kai)(kai)關(guan)(guan)(guan)(guan)元(yuan)件(jian)的(de)(de)(de)(de)(de)通斷(duan)狀態，達(da)到控(kong)制(zhi)(zhi)被測(ce)壓(ya)(ya)力(li)(li)(li)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。壓(ya)(ya)力(li)(li)(li)開(kai)(kai)關(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)彈性元(yuan)件(jian)有單(dan)(dan)圈彈簧管、膜片、膜盒(he)及(ji)波紋管等(deng)。 

繼(ji)(ji)電器(qi)(qi)(qi)（英(ying)文(wen)名稱：relay）是(shi)一(yi)種(zhong)(zhong)(zhong)電控(kong)制器(qi)(qi)(qi)件，是(shi)當輸入量（激勵量）的(de)(de)變(bian)化(hua)(hua)(hua)達到(dao)(dao)規定要(yao)求時(shi)，在(zai)(zai)電氣輸出電路(lu)(lu)中(zhong)使被控(kong)量發生(sheng)預定的(de)(de)階躍變(bian)化(hua)(hua)(hua)的(de)(de)一(yi)種(zhong)(zhong)(zhong)電器(qi)(qi)(qi)。它具有控(kong)制系統（又(you)稱輸入回路(lu)(lu)）和被控(kong)制系統（又(you)稱輸出回路(lu)(lu)）之間的(de)(de)互動(dong)(dong)關系。通常應用(yong)于自動(dong)(dong)化(hua)(hua)(hua)的(de)(de)控(kong)制電路(lu)(lu)中(zhong)，它實際(ji)上是(shi)用(yong)小電流去控(kong)制大電流運作(zuo)的(de)(de)一(yi)種(zhong)(zhong)(zhong)“自動(dong)(dong)開(kai)關”。故在(zai)(zai)電路(lu)(lu)中(zhong)起著自動(dong)(dong)調節、安全保護、轉換電路(lu)(lu)等作(zuo)用(yong)。繼(ji)(ji)電器(qi)(qi)(qi)線圈在(zai)(zai)電路(lu)(lu)中(zhong)用(yong)一(yi)個(ge)長方框符(fu)號(hao)(hao)表示，如果繼(ji)(ji)電器(qi)(qi)(qi)有兩個(ge)線圈，就畫兩個(ge)并列的(de)(de)長方框。同(tong)時(shi)在(zai)(zai)長方框內(nei)或長方框旁標上繼(ji)(ji)電器(qi)(qi)(qi)的(de)(de)文(wen)字(zi)符(fu)號(hao)(hao)“J”。繼(ji)(ji)電器(qi)(qi)(qi)的(de)(de)觸點有兩種(zhong)(zhong)(zhong)表示方法：一(yi)種(zhong)(zhong)(zhong)是(shi)把(ba)它們直(zhi)接(jie)畫在(zai)(zai)長方框一(yi)側，這種(zhong)(zhong)(zhong)表示法較為(wei)直(zhi)觀。另(ling)一(yi)種(zhong)(zhong)(zhong)是(shi)按照電路(lu)(lu)連接(jie)的(de)(de)需要(yao)，把(ba)各個(ge)觸點分(fen)別(bie)(bie)畫到(dao)(dao)各自的(de)(de)控(kong)制電路(lu)(lu)中(zhong)，通常在(zai)(zai)同(tong)一(yi)繼(ji)(ji)電器(qi)(qi)(qi)的(de)(de)觸點與線圈旁分(fen)別(bie)(bie)標注上相同(tong)的(de)(de)文(wen)字(zi)符(fu)號(hao)(hao)，并將(jiang)觸點組編上號(hao)(hao)碼，以示區別(bie)(bie)。

電(dian)(dian)(dian)(dian)磁(ci)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)(yi)(yi)般由鐵(tie)(tie)(tie)芯(xin)(xin)、線(xian)圈、銜(xian)鐵(tie)(tie)(tie)、觸(chu)(chu)(chu)(chu)點(dian)(dian)簧等(deng)組成的(de)(de)(de)(de)(de)(de)(de)(de)。只要(yao)在(zai)線(xian)圈兩端(duan)加上(shang)一(yi)(yi)(yi)定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)，線(xian)圈中(zhong)(zhong)就會(hui)(hui)流(liu)過一(yi)(yi)(yi)定(ding)的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)，從(cong)(cong)而(er)產(chan)生電(dian)(dian)(dian)(dian)磁(ci)效應(ying)，銜(xian)鐵(tie)(tie)(tie)就會(hui)(hui)在(zai)電(dian)(dian)(dian)(dian)磁(ci)力(li)吸(xi)(xi)(xi)(xi)引的(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)(yong)下(xia)(xia)(xia)(xia)克服返回彈(dan)簧的(de)(de)(de)(de)(de)(de)(de)(de)拉力(li)吸(xi)(xi)(xi)(xi)向鐵(tie)(tie)(tie)芯(xin)(xin)，從(cong)(cong)而(er)帶動(dong)(dong)(dong)銜(xian)鐵(tie)(tie)(tie)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)點(dian)(dian)與(yu)靜觸(chu)(chu)(chu)(chu)點(dian)(dian)（常(chang)開觸(chu)(chu)(chu)(chu)點(dian)(dian)）吸(xi)(xi)(xi)(xi)合(he)(he)。當線(xian)圈斷(duan)電(dian)(dian)(dian)(dian)后，電(dian)(dian)(dian)(dian)磁(ci)的(de)(de)(de)(de)(de)(de)(de)(de)吸(xi)(xi)(xi)(xi)力(li)也(ye)隨之(zhi)消(xiao)失(shi)，銜(xian)鐵(tie)(tie)(tie)就會(hui)(hui)在(zai)彈(dan)簧的(de)(de)(de)(de)(de)(de)(de)(de)反作用(yong)(yong)(yong)力(li)返回原來的(de)(de)(de)(de)(de)(de)(de)(de)位(wei)(wei)置，使(shi)動(dong)(dong)(dong)觸(chu)(chu)(chu)(chu)點(dian)(dian)與(yu)原來的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)點(dian)(dian)（常(chang)閉(bi)觸(chu)(chu)(chu)(chu)點(dian)(dian)）釋放。這樣(yang)吸(xi)(xi)(xi)(xi)合(he)(he)、釋放，從(cong)(cong)而(er)達到(dao)了在(zai)電(dian)(dian)(dian)(dian)路(lu)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)導通(tong)(tong)、切斷(duan)的(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)。對于繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)“常(chang)開、常(chang)閉(bi)”觸(chu)(chu)(chu)(chu)點(dian)(dian)，可以這樣(yang)來區(qu)分(fen)：繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)線(xian)圈未通(tong)(tong)電(dian)(dian)(dian)(dian)時(shi)(shi)處于斷(duan)開狀(zhuang)態的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)點(dian)(dian)，稱為“常(chang)開觸(chu)(chu)(chu)(chu)點(dian)(dian)”；處于接通(tong)(tong)狀(zhuang)態的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)點(dian)(dian)稱為“常(chang)閉(bi)觸(chu)(chu)(chu)(chu)點(dian)(dian)”。繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)(yi)(yi)般有兩股電(dian)(dian)(dian)(dian)路(lu)，為低壓(ya)控制電(dian)(dian)(dian)(dian)路(lu)和高壓(ya)工作電(dian)(dian)(dian)(dian)路(lu)。當線(xian)圈通(tong)(tong)電(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)壓(ya)規(gui)格有ac380v、ac220v或(huo)dc220v、dc24v等(deng)）時(shi)(shi)，銜(xian)鐵(tie)(tie)(tie)及托板被鐵(tie)(tie)(tie)心吸(xi)(xi)(xi)(xi)引而(er)瞬(shun)時(shi)(shi)下(xia)(xia)(xia)(xia)移(yi)，使(shi)瞬(shun)時(shi)(shi)動(dong)(dong)(dong)作觸(chu)(chu)(chu)(chu)點(dian)(dian)接通(tong)(tong)或(huo)斷(duan)開。但是活塞桿和杠(gang)桿不能同時(shi)(shi)跟(gen)著(zhu)銜(xian)鐵(tie)(tie)(tie)一(yi)(yi)(yi)起下(xia)(xia)(xia)(xia)落，因(yin)為活塞桿的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)端(duan)連(lian)著(zhu)氣室中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)橡皮膜，當活塞桿在(zai)釋放彈(dan)簧的(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)(yong)(yong)下(xia)(xia)(xia)(xia)開始(shi)向下(xia)(xia)(xia)(xia)運(yun)動(dong)(dong)(dong)時(shi)(shi)，橡皮膜隨之(zhi)向下(xia)(xia)(xia)(xia)凹，上(shang)面空氣室的(de)(de)(de)(de)(de)(de)(de)(de)空氣變得稀薄而(er)使(shi)活塞桿受(shou)到(dao)阻尼(ni)作用(yong)(yong)(yong)而(er)緩慢下(xia)(xia)(xia)(xia)降(jiang)(jiang)。經過一(yi)(yi)(yi)定(ding)時(shi)(shi)間(jian)，活塞桿下(xia)(xia)(xia)(xia)降(jiang)(jiang)到(dao)一(yi)(yi)(yi)定(ding)位(wei)(wei)置，便(bian)通(tong)(tong)過杠(gang)桿推(tui)動(dong)(dong)(dong)延(yan)(yan)(yan)時(shi)(shi)觸(chu)(chu)(chu)(chu)點(dian)(dian)動(dong)(dong)(dong)作，使(shi)動(dong)(dong)(dong)斷(duan)觸(chu)(chu)(chu)(chu)點(dian)(dian)斷(duan)開，動(dong)(dong)(dong)合(he)(he)觸(chu)(chu)(chu)(chu)點(dian)(dian)閉(bi)合(he)(he)。從(cong)(cong)線(xian)圈通(tong)(tong)電(dian)(dian)(dian)(dian)到(dao)延(yan)(yan)(yan)時(shi)(shi)觸(chu)(chu)(chu)(chu)點(dian)(dian)完成動(dong)(dong)(dong)作，這段時(shi)(shi)間(jian)就是繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)延(yan)(yan)(yan)時(shi)(shi)時(shi)(shi)間(jian)。延(yan)(yan)(yan)時(shi)(shi)時(shi)(shi)間(jian)的(de)(de)(de)(de)(de)(de)(de)(de)長短可以用(yong)(yong)(yong)螺釘調節空氣室進氣孔的(de)(de)(de)(de)(de)(de)(de)(de)大小來改變。

互感器又稱為儀用變壓器，是電流互感器和電壓互感器的統稱。能將高電壓變成低電壓、大電流變成小電流，用于量測或保護系統。其功能主要是將高電壓或大電流按比例變換成標準低電壓（100V）或標準小電流（5A或1A，均指額定值），以便實現測量儀表、保護設備及自動控制設備的標準化、小型化。同時互感器還可用來隔開高電壓系統，以保證人身和設備的安全。
在供電用電的線路中，電流相差從幾安到幾萬安，電壓相差從幾伏到幾百萬伏。線路中電流電壓都比較高，如直接測量是非常危險的。為便于二次儀表測量需要轉換為比較統一的電流電壓，使用互感器起到變流變壓和電氣隔離的作用。
 顯示儀表大部分是指針式的電流電壓表，所以電流互感器的二次電流大多數是安培級的（如5等）。隨著時代發展，電量測量大多已經達到數字化，而計算機的采樣的信號一般為毫安級（0-5V、4-20mA等）。微型電流互感器二次電流為毫安級，主要起大互感器與采樣之間的橋梁作用。微型電流互感器稱之為“儀用電流互感器”。（“儀用電流互感器”有一層含義是在實驗室使用的多電流比精密電流互感器，一般用于擴大儀表量程。）
電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)原理線路圖微(wei)型電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)與變壓(ya)器(qi)(qi)類似也是根據電(dian)(dian)磁(ci)感(gan)應原理工作，變壓(ya)器(qi)(qi)變換(huan)的是電(dian)(dian)壓(ya)而(er)微(wei)型電(dian)(dian)流(liu)互(hu)感(gan)器(qi)(qi)變換(huan)的是電(dian)(dian)流(liu)罷了(le)。繞組(zu)N1接(jie)被測電(dian)(dian)流(liu)，稱為一次繞組(zu)（或(huo)原邊(bian)繞組(zu)、初級繞組(zu)）；繞組(zu)N2接(jie)測量儀表(biao)，稱為二(er)次繞組(zu)（或(huo)副邊(bian)繞組(zu)、次級繞組(zu)）。

SCHUNK雄克    cable jumper    KA BG08-L-3P-0300-PNP
SCHUNK雄克    電器件    301578
SCHUNK雄克    卡爪    0304374  DPG-PLUS 240-2-AS
SCHUNK雄克    備件    0304331 DPG-plus 100-1
SCHUNK雄克    接近開關    301511
SCHUNK雄克    備件    MMS 22-S-M8-PNP  0301432
SCHUNK雄克    卡盤    0305150 PZB+64-1
SCHUNK雄克    機械手    JGZ100-1-10  貨號：308940
SCHUNK雄克    機械手    GFS 16-90-L  0355498
SCHUNK雄克    磁性開關    301032 MMS22-SPM8GG4
SCHUNK雄克    刀柄    HOLDER HSK-A63-D06-150L (253 331)
SCHUNK雄克    磁性開關Magnetism sensor    0301032
SCHUNK雄克    氣缸    PZN-plus80-1-IS
SCHUNK雄克    備件    0303539
SCHUNK雄克    底盤夾具氣缸    PGN+200-2-SD  37371155
SCHUNK雄克    備件    PGN-PLUS 80-1
SCHUNK雄克    備件    SCH-IN40/S-M8
SCHUNK雄克    seal kit    0470219 FOR VERO-S NSE-90 UNILOCK
SCHUNK雄克    備件    MPZ 45 ID 0340530
SCHUNK雄克    氣缸    0324463
SCHUNK雄克    氣缸    SWA-110-000-000
SCHUNK雄克    通用機械手氣缸    PGN +40-AS/371082
SCHUNK雄克    seal kit    0302025 DSA PFH 150-200-250-300
SCHUNK雄克    2指氣爪    PGN+80-2 371451
SCHUNK雄克    Sensor    MMS22-S-M5-NPN-SA
SCHUNK雄克    氣缸    0302132_PSH32-1
SCHUNK雄克    備件    訂貨號：9939378
SCHUNK雄克    磁性開關    4030/555
SCHUNK雄克    傳感器    IN-60/S-M8 ID NO 301485
SCHUNK雄克    夾爪    PGN+125/2 371153
SCHUNK雄克    圓盤剪剪刃鎖緊器    13300401.7
SCHUNK雄克    備件    MMS-P22-S-M8-PNP
SCHUNK雄克    備件    DPG-PLUS 125-1-AS
SCHUNK雄克    氣缸    DPG100-AS
SCHUNK雄克    備件    GWB 44 307136
SCHUNK雄克    航空接頭    9935815
SCHUNK雄克    備件    Parallelgreifer PGN 40 plus
SCHUNK雄克    氣動卡盤chuck    0816125/TP125-26/Z120
SCHUNK雄克    三爪機械手    PZN 50/1 IS  300539
SCHUNK雄克    氣動夾爪    DPG-plus 125-1-AS ID:0304343
SCHUNK雄克    轉動單元    OSE-C34-0  0354321
SCHUNK雄克    夾爪氣缸    PZN125
SCHUNK雄克    控制盒    FPS-F5 訂貨號0301805
SCHUNK雄克    備件    0340014-MPG64
SCHUNK雄克    氣缸磁性開關    0301032 mms22 spm8 ed
SCHUNK雄克    氣動夾爪    PZN 64/1  0300310
SCHUNK雄克    碳刷    C80X 40*20*55
SCHUNK雄克    傳感器    MMS22-S-M8-PNP 0301032
SCHUNK雄克    氣缸    RH9010  0360141
SCHUNK雄克    備件    PGN-PLUS-380-1
SCHUNK雄克    O-ring    9980 058
SCHUNK雄克    安裝工具    340150
SCHUNK雄克    夾爪氣缸    PGN-PLUS-2OO-2
SCHUNK雄克    parallel-gripper    MPG20 AS    0340039
SCHUNK雄克    毛刷+配套    BRUSH TOOL A21-CB60M CUTTING FIBER
SCHUNK雄克    平行卡爪    0340040
SCHUNK雄克    備件    SWA-150-000-000 0302453
SCHUNK雄克    密封件seal    9907533/TP-125.58
SCHUNK雄克    備件    GWK125
SCHUNK雄克    氣缸    JGP 64-1-AS 308621
SCHUNK雄克    磁控開關    301032mms22-SPm8GH4
SCHUNK雄克    卡爪    PGNPLUS125-1
SCHUNK雄克    備件    FMS-ZBP50  訂貨號：301831
SCHUNK雄克    接近開關    FPS-M8 0301704
SCHUNK雄克    機械手    PGN+80-1 371461
SCHUNK雄克    線性模型    CLM 050-H025 0314038
SCHUNK雄克    電器件    0340010
SCHUNK雄克    夾爪    0308611
SCHUNK雄克    2-Finger-parallel gripper    LGP-40  312915
SCHUNK雄克    氣爪手指    MPG32  0340011
SCHUNK雄克    備件    E104   22*32*60mm
SCHUNK雄克    氣爪    MPG16  0340008
SCHUNK雄克    夾爪    303542
SCHUNK雄克    備件    0206287
SCHUNK雄克    連接電纜    301900
SCHUNK雄克    夾爪    JGZ160-1(ID:0308960)
SCHUNK雄克    夾緊氣缸    371124 PGN+100-1-P
SCHUNK雄克    AIR GRIPPER    OP15B    PZN50-1
SCHUNK雄克    旋轉氣缸    SRH+40-W   359282
SCHUNK雄克    備件    820004
SCHUNK雄克    氣缸    PZN160-1
SCHUNK雄克    備件    SWS-011 15
SCHUNK雄克    氣缸    0303061
SCHUNK雄克    備件    300347  PZB100
SCHUNK雄克    轉換器    HIGH4
SCHUNK雄克    固定夾塊    10354635
SCHUNK雄克    氣缸    SPU+30-W 361842
SCHUNK雄克    備件    0371106 PGN+300-1
SCHUNK雄克    機械手    PGN-plus 125-1 0371103
SCHUNK雄克    氣動手指    PWG80-302613
SCHUNK雄克    備件    FPS-M8 301704
SCHUNK雄克    磁性開關    MMS22-SPMB 0301032
SCHUNK雄克    平行夾抓    0371150
SCHUNK雄克    氣缸傳感器    MMS 22-S-M8-PNP 0301032
SCHUNK雄克    備件    0362024 SRU+35-W-180-3-4-M8
SCHUNK雄克    2指氣爪    PGN+80-2 371151
SCHUNK雄克    傳感器+光電管    傳感器EFS2000-11114 + 光電管30LZX12/1000/2000MSC  S1468
SCHUNK雄克    備件    MPG40 0340012
SCHUNK雄克    夾爪    PGNPLUS300-1(ID;0371106)
SCHUNK雄克    備件    PINZA 2 GRIFFE PARALLELE 4PZ ENGP C 0340011 MPG 32
SCHUNK雄克    備件    PGN+100-1-AS
SCHUNK雄克    氣缸    KGG-80 340310
SCHUNK雄克    底座    ACI2020R
SCHUNK雄克    刀柄    0263594
SCHUNK雄克    備件    PGN-300-2/IS訂貨號:370476
SCHUNK雄克    平行夾爪    0371080
SCHUNK雄克    碳刷    2*12.5*32*50
SCHUNK雄克    液壓卡盤    ROTA NCK  PLUS  315-91
SCHUNK雄克    氣缸    MPG40AS 340042
SCHUNK雄克    備件    MPG 25 AS
SCHUNK雄克    夾具    361422
SCHUNK雄克    前抓手氣缸    GMP 28-Z
SCHUNK雄克    機械手    PGN-Plus-80-2-AS  0371451
SCHUNK雄克    塊環系統附件    40102515
SCHUNK雄克    備件    MPZ 38IS 340522
SCHUNK雄克    備件    0340312 KGG 220
SCHUNK雄克    氣缸    0371462 PGN+100-1-IS
SCHUNK雄克    氣缸(夾爪)    PZN-160-1
SCHUNK雄克    備件    MMS22-S-M8-PNP
SCHUNK雄克    備件    PZN+64-1  303640
SCHUNK雄克    備件    0301474 IN40/S-M8
SCHUNK雄克    備件    30030953
SCHUNK雄克    備件    KGG 140 (340311)
SCHUNK雄克    接近開關    301469
SCHUNK雄克    備件    MMSK22-S-PNP
SCHUNK雄克    接近開關    0377720
SCHUNK雄克    汽缸    PGN80/1      370101
SCHUNK雄克    氣缸    P6N+64-1  37371092
SCHUNK雄克    備件    PGN 160/1 370104
SCHUNK雄克    夾爪氣缸    PGN200-1
SCHUNK雄克    氣缸    PGN+200-1 37371105（帶開關）
SCHUNK雄克    備件    SRU50.2-180-3
SCHUNK雄克    氣缸    GSM-P 32-E-090 304630
SCHUNK雄克    備件    KGG80
SCHUNK雄克    氣缸    MPG40AS 340042
SCHUNK雄克    備件    AS-FPS-PSH22-1
SCHUNK雄克    夾爪    JGZ160-1(ID;0308960)
SCHUNK雄克    旋轉氣缸    0361400  SRU-PLUS 20-W-90-3
SCHUNK雄克    磁性開關    MMS 22-S-M5-NPN-SA 0301449
SCHUNK雄克    電器件    AGE-F-XY-040
SCHUNK雄克    備件    0301623 MX1212
SCHUNK雄克    傳感器    IN 5-S-M8，NHS PNP
SCHUNK雄克    氣缸    P6N+64-1  37371092
SCHUNK雄克    液壓刀柄    204457
SCHUNK雄克    換型系統    SWA-011-000-000 0302317
SCHUNK雄克    備件    0206554
SCHUNK雄克    減徑套    GZB-S  20/12
SCHUNK雄克    氣缸磁性開關    0301032
SCHUNK雄克    備件    LMST 100-KT
SCHUNK雄克    夾爪    3800561731
SCHUNK雄克    備件    Parallelgreifer KGG 80
SCHUNK雄克    傳感器    APS-M1S 0302062
SCHUNK雄克    備件    MMS 22-S-M8-PNP-SA
SCHUNK雄克    夾爪氣缸    PGN+200/2 AS 371455
SCHUNK雄克    備件    301449
SCHUNK雄克    平行夾持器    MPG40AS 0340042
SCHUNK雄克    氣缸    CFS 16-18 355497
SCHUNK雄克    碳刷    E46F3 16*25*50MM
SCHUNK雄克    備件    0303308
SCHUNK雄克    卡盤    0305150 PZB+64-1
SCHUNK雄克    備件    PWG60S 302612
SCHUNK雄克    RQC公接頭    SWK-011-000-000-USA
SCHUNK雄克    氣缸(夾抓)    PGN+200/1  371105
SCHUNK雄克    旋轉夾爪    0313313 RP-2128-Z
SCHUNK雄克(ke)    磁性開關    MMS22-S-M8-PNP-SA  0301042

SCHUNK雄克氣缸CFS 16-18 355497翊霈供應

SCHUNK雄克氣缸CFS 16-18 355497翊霈供應