單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)是流(liu)(liu)體只能(neng)(neng)沿進水(shui)口(kou)(kou)(kou)流(liu)(liu)動(dong)(dong)(dong)(dong)，出(chu)水(shui)口(kou)(kou)(kou)介(jie)質卻無法(fa)(fa)回流(liu)(liu)，俗稱(cheng)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(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)又稱(cheng)止回閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)或(huo)逆(ni)止閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。用(yong)(yong)于(yu)液(ye)(ye)(ye)壓系統中(zhong)(zhong)防(fang)止油(you)(you)(you)(you)流(liu)(liu)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong),或(huo)者用(yong)(yong)于(yu)氣(qi)(qi)(qi)動(dong)(dong)(dong)(dong)系統中(zhong)(zhong)防(fang)止壓縮(suo)(suo)(suo)空(kong)氣(qi)(qi)(qi)逆(ni)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)(you)直(zhi)(zhi)(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)和(he)直(zhi)(zhi)(zhi)(zhi)角(jiao)式(shi)(shi)(shi)兩(liang)(liang)種。直(zhi)(zhi)(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)用(yong)(yong)螺(luo)紋連(lian)(lian)接(jie)(jie)安(an)裝(zhuang)在(zai)(zai)(zai)管路(lu)上(shang)(shang)。直(zhi)(zhi)(zhi)(zhi)角(jiao)式(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)(you)螺(luo)紋連(lian)(lian)接(jie)(jie)、板式(shi)(shi)(shi)連(lian)(lian)接(jie)(jie)和(he)法(fa)(fa)蘭連(lian)(lian)接(jie)(jie)三種形(xing)式(shi)(shi)(shi)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)(you)直(zhi)(zhi)(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)和(he)直(zhi)(zhi)(zhi)(zhi)角(jiao)式(shi)(shi)(shi)兩(liang)(liang)種。直(zhi)(zhi)(zhi)(zhi)通(tong)(tong)式(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)用(yong)(yong)螺(luo)紋連(lian)(lian)接(jie)(jie)安(an)裝(zhuang)在(zai)(zai)(zai)管路(lu)上(shang)(shang)。直(zhi)(zhi)(zhi)(zhi)角(jiao)式(shi)(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)有(you)(you)螺(luo)紋連(lian)(lian)接(jie)(jie)、板式(shi)(shi)(shi)連(lian)(lian)接(jie)(jie)和(he)法(fa)(fa)蘭連(lian)(lian)接(jie)(jie)三種形(xing)式(shi)(shi)(shi)。液(ye)(ye)(ye)控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)也稱(cheng)閉鎖閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)或(huo)保壓閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)，它與單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)相同，用(yong)(yong)以防(fang)止油(you)(you)(you)(you)液(ye)(ye)(ye)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)。但在(zai)(zai)(zai)液(ye)(ye)(ye)壓回路(lu)中(zhong)(zhong)需要(yao)油(you)(you)(you)(you)流(liu)(liu)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)時(shi)(shi)又可(ke)(ke)利用(yong)(yong)控(kong)制油(you)(you)(you)(you)壓，打(da)開單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)，使油(you)(you)(you)(you)流(liu)(liu)在(zai)(zai)(zai)兩(liang)(liang)個(ge)方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)都可(ke)(ke)流(liu)(liu)動(dong)(dong)(dong)(dong)。液(ye)(ye)(ye)控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)采(cai)用(yong)(yong)錐形(xing)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)芯(xin)，因此(ci)密封(feng)性能(neng)(neng)好。在(zai)(zai)(zai)要(yao)求(qiu)封(feng)閉油(you)(you)(you)(you)路(lu)時(shi)(shi)，可(ke)(ke)用(yong)(yong)此(ci)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)作(zuo)為油(you)(you)(you)(you)路(lu)的(de)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)鎖緊而(er)起保壓作(zuo)用(yong)(yong)。液(ye)(ye)(ye)控(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)控(kong)制油(you)(you)(you)(you)的(de)泄漏方(fang)式(shi)(shi)(shi)有(you)(you)內泄式(shi)(shi)(shi)和(he)外泄式(shi)(shi)(shi)二種。在(zai)(zai)(zai)油(you)(you)(you)(you)流(liu)(liu)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)出(chu)口(kou)(kou)(kou)無背壓的(de)油(you)(you)(you)(you)路(lu)中(zhong)(zhong)可(ke)(ke)用(yong)(yong)內泄式(shi)(shi)(shi)；否(fou)則(ze)需用(yong)(yong)外泄式(shi)(shi)(shi)，以降低控(kong)制油(you)(you)(you)(you)壓力(li)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)是氣(qi)(qi)(qi)流(liu)(liu)只能(neng)(neng)一(yi)個(ge)方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)而(er)不(bu)能(neng)(neng)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)的(de)方(fang)向(xiang)(xiang)(xiang)(xiang)(xiang)控(kong)制閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)。其工(gong)作(zuo)原理與液(ye)(ye)(ye)壓單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)一(yi)樣。壓縮(suo)(suo)(suo)空(kong)氣(qi)(qi)(qi)從P口(kou)(kou)(kou)進入，克服(fu)彈簧(huang)力(li)和(he)摩擦力(li)使單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)開啟，壓縮(suo)(suo)(suo)空(kong)氣(qi)(qi)(qi)從P流(liu)(liu)至A；當P口(kou)(kou)(kou)無壓縮(suo)(suo)(suo)空(kong)氣(qi)(qi)(qi)時(shi)(shi)，在(zai)(zai)(zai)彈簧(huang)力(li)和(he)A口(kou)(kou)(kou)(腔(qiang))余氣(qi)(qi)(qi)力(li)作(zuo)用(yong)(yong)下；閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)口(kou)(kou)(kou)處于(yu)關閉狀 態，使從A至P氣(qi)(qi)(qi)流(liu)(liu)不(bu)通(tong)(tong)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)應用(yong)(yong)于(yu)不(bu)允許氣(qi)(qi)(qi)流(liu)(liu)反(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)流(liu)(liu)動(dong)(dong)(dong)(dong)的(de)場(chang)合(he)(he)，如空(kong)壓機(ji)向(xiang)(xiang)(xiang)(xiang)(xiang)氣(qi)(qi)(qi)罐充氣(qi)(qi)(qi) 時(shi)(shi)，在(zai)(zai)(zai)空(kong)壓機(ji)與氣(qi)(qi)(qi)罐之間設置一(yi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)，當空(kong)壓機(ji)停止工(gong)作(zuo)時(shi)(shi)，可(ke)(ke)防(fang)止氣(qi)(qi)(qi)罐中(zhong)(zhong)的(de)壓縮(suo)(suo)(suo)空(kong)氣(qi)(qi)(qi)回流(liu)(liu) 到空(kong)壓機(ji)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)還常與節流(liu)(liu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)、順(shun)序(xu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)等組合(he)(he)成單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)節流(liu)(liu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)、單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)(xiang)順(shun)序(xu)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)使用(yong)(yong)。

壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)采用(yong)高精(jing)(jing)度(du)、高穩(wen)定(ding)性能的(de)(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)傳感(gan)器(qi)和變(bian)送電(dian)(dian)(dian)路，再(zai)經 CPU模塊(kuai)化信(xin)(xin)號(hao)(hao)處理(li)技(ji)術，實現(xian)對介(jie)質壓(ya)(ya)(ya)(ya)(ya)力(li)(li)信(xin)(xin)號(hao)(hao)的(de)(de)檢測(ce)(ce)、顯示、報警和控制(zhi)信(xin)(xin)號(hao)(hao)輸出(chu)。壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)可(ke)以(yi)廣(guang)(guang)泛(fan)用(yong)于石油、化工(gong)、冶金(jin)、電(dian)(dian)(dian)力(li)(li)、供(gong)水(shui)(shui)等(deng)領域中對各種(zhong)氣(qi)體、液(ye)(ye)體的(de)(de)表壓(ya)(ya)(ya)(ya)(ya)、絕壓(ya)(ya)(ya)(ya)(ya)的(de)(de)測(ce)(ce)量控制(zhi)，是(shi)工(gong)業(ye)現(xian)場理(li)想的(de)(de)智能化測(ce)(ce)控儀表。壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)是(shi)與電(dian)(dian)(dian)器(qi)開(kai)(kai)(kai)(kai)關(guan)(guan)相結合(he)的(de)(de)裝(zhuang)置，當(dang)(dang)到達(da)預(yu)(yu)先設(she)定(ding)的(de)(de)流(liu)體壓(ya)(ya)(ya)(ya)(ya)力(li)(li)時(shi)，開(kai)(kai)(kai)(kai)關(guan)(guan)接(jie)(jie)點動(dong)作(zuo)。主要應用(yong)于電(dian)(dian)(dian)廠(chang)、石化、冶金(jin)行(xing)業(ye)等(deng)工(gong)業(ye)設(she)備(bei)上輸出(chu)報警或(huo)控制(zhi)信(xin)(xin)號(hao)(hao)，在(zai)工(gong)業(ye)領域中有著重(zhong)要的(de)(de)用(yong)途，能預(yu)(yu)防生(sheng)產工(gong)程中重(zhong)要裝(zhuang)置的(de)(de)損(sun)壞，避(bi)免了重(zhong)大生(sheng)產事故(gu)地發生(sheng)。電(dian)(dian)(dian)子壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)是(shi)通(tong)(tong)(tong)過(guo)高精(jing)(jing)度(du)儀表放大器(qi)放大壓(ya)(ya)(ya)(ya)(ya)力(li)(li)信(xin)(xin)號(hao)(hao)，通(tong)(tong)(tong)過(guo)高速MCU采集并(bing)處理(li)數據，內置精(jing)(jing)密傳感(gan)器(qi)進行(xing)補償，是(shi)檢測(ce)(ce)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)、液(ye)(ye)位(wei)(wei)(wei)信(xin)(xin)號(hao)(hao)，實現(xian)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)、液(ye)(ye)位(wei)(wei)(wei)監測(ce)(ce)和控制(zhi)的(de)(de)高精(jing)(jing)度(du)設(she)備(bei)。廣(guang)(guang)泛(fan)使用(yong)在(zai)化工(gong)、機械、水(shui)(shui)文、電(dian)(dian)(dian)力(li)(li)、環保等(deng)測(ce)(ce)量氣(qi)體、液(ye)(ye)體壓(ya)(ya)(ya)(ya)(ya)力(li)(li)的(de)(de)自(zi)動(dong)化系統中。因為調節方便靈(ling)活，安(an)裝(zhuang)簡單(dan)，可(ke)以(yi)替代大部(bu)分使用(yong)液(ye)(ye)位(wei)(wei)(wei)開(kai)(kai)(kai)(kai)關(guan)(guan)的(de)(de)場合(he).壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)的(de)(de)工(gong)作(zuo)原理(li)：是(shi)當(dang)(dang)系統內壓(ya)(ya)(ya)(ya)(ya)力(li)(li)高于或(huo)低于額定(ding)的(de)(de)安(an)全壓(ya)(ya)(ya)(ya)(ya)力(li)(li)時(shi)，感(gan)應器(qi)內碟(die)片(pian)瞬(shun)時(shi)發生(sheng)移(yi)動(dong)，通(tong)(tong)(tong)過(guo)連接(jie)(jie)導(dao)桿推動(dong)開(kai)(kai)(kai)(kai)關(guan)(guan)接(jie)(jie)頭接(jie)(jie)通(tong)(tong)(tong)或(huo)斷(duan)開(kai)(kai)(kai)(kai)，當(dang)(dang)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)降至或(huo)升(sheng)額定(ding)的(de)(de)恢(hui)復值時(shi)，碟(die)片(pian)瞬(shun)時(shi)復位(wei)(wei)(wei)，開(kai)(kai)(kai)(kai)關(guan)(guan)自(zi)動(dong)復位(wei)(wei)(wei)，或(huo)者簡單(dan)的(de)(de)說是(shi)當(dang)(dang)被測(ce)(ce)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)超過(guo)額定(ding)值時(shi)，彈(dan)(dan)性元(yuan)件的(de)(de)自(zi)由端(duan)產生(sheng)位(wei)(wei)(wei)移(yi)，直(zhi)接(jie)(jie)或(huo)經過(guo)比(bi)較(jiao)后推動(dong)開(kai)(kai)(kai)(kai)關(guan)(guan)元(yuan)件，改變(bian)開(kai)(kai)(kai)(kai)關(guan)(guan)元(yuan)件的(de)(de)通(tong)(tong)(tong)斷(duan)狀態，達(da)到控制(zhi)被測(ce)(ce)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)的(de)(de)目(mu)的(de)(de)。壓(ya)(ya)(ya)(ya)(ya)力(li)(li)開(kai)(kai)(kai)(kai)關(guan)(guan)采用(yong)的(de)(de)彈(dan)(dan)性元(yuan)件有單(dan)圈彈(dan)(dan)簧管(guan)、膜片(pian)、膜盒及波紋管(guan)等(deng)。 

繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)（英(ying)文(wen)名稱：relay）是一(yi)(yi)(yi)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)控(kong)(kong)制(zhi)(zhi)器(qi)(qi)件(jian)，是當輸入量(liang)（激勵量(liang)）的(de)(de)(de)變化(hua)(hua)達到(dao)規定(ding)要求(qiu)時，在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)使被控(kong)(kong)量(liang)發(fa)生(sheng)預定(ding)的(de)(de)(de)階躍變化(hua)(hua)的(de)(de)(de)一(yi)(yi)(yi)種(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。它(ta)具(ju)有(you)控(kong)(kong)制(zhi)(zhi)系(xi)統（又(you)稱輸入回(hui)路(lu)(lu)(lu)）和被控(kong)(kong)制(zhi)(zhi)系(xi)統（又(you)稱輸出回(hui)路(lu)(lu)(lu)）之間的(de)(de)(de)互動(dong)關(guan)系(xi)。通常(chang)(chang)應用于自動(dong)化(hua)(hua)的(de)(de)(de)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)，它(ta)實際上是用小電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流去控(kong)(kong)制(zhi)(zhi)大電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流運作(zuo)的(de)(de)(de)一(yi)(yi)(yi)種(zhong)(zhong)“自動(dong)開關(guan)”。故在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)起(qi)著自動(dong)調節、安全保護、轉換(huan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)等作(zuo)用。繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)線圈(quan)在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)用一(yi)(yi)(yi)個長(chang)(chang)方(fang)(fang)(fang)框(kuang)符號表示(shi)，如果繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)有(you)兩個線圈(quan)，就畫(hua)(hua)兩個并列(lie)的(de)(de)(de)長(chang)(chang)方(fang)(fang)(fang)框(kuang)。同(tong)(tong)時在長(chang)(chang)方(fang)(fang)(fang)框(kuang)內或長(chang)(chang)方(fang)(fang)(fang)框(kuang)旁(pang)標上繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)文(wen)字(zi)符號“J”。繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)觸(chu)點有(you)兩種(zhong)(zhong)表示(shi)方(fang)(fang)(fang)法：一(yi)(yi)(yi)種(zhong)(zhong)是把(ba)它(ta)們直(zhi)接畫(hua)(hua)在長(chang)(chang)方(fang)(fang)(fang)框(kuang)一(yi)(yi)(yi)側(ce)，這種(zhong)(zhong)表示(shi)法較為直(zhi)觀。另一(yi)(yi)(yi)種(zhong)(zhong)是按(an)照(zhao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)連接的(de)(de)(de)需(xu)要，把(ba)各個觸(chu)點分別(bie)畫(hua)(hua)到(dao)各自的(de)(de)(de)控(kong)(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)中(zhong)，通常(chang)(chang)在同(tong)(tong)一(yi)(yi)(yi)繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)觸(chu)點與線圈(quan)旁(pang)分別(bie)標注上相同(tong)(tong)的(de)(de)(de)文(wen)字(zi)符號，并將觸(chu)點組編上號碼，以示(shi)區別(bie)。

電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)(yi)般(ban)由鐵(tie)(tie)芯、線(xian)圈(quan)(quan)(quan)、銜(xian)(xian)鐵(tie)(tie)、觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)簧(huang)(huang)等組成的(de)(de)(de)(de)。只要在線(xian)圈(quan)(quan)(quan)兩端加上(shang)(shang)一(yi)(yi)定的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，線(xian)圈(quan)(quan)(quan)中就(jiu)(jiu)會流(liu)過一(yi)(yi)定的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，從(cong)而(er)(er)產(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)效應，銜(xian)(xian)鐵(tie)(tie)就(jiu)(jiu)會在電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)力(li)(li)吸引的(de)(de)(de)(de)作(zuo)(zuo)(zuo)(zuo)(zuo)用下克服返(fan)回彈簧(huang)(huang)的(de)(de)(de)(de)拉力(li)(li)吸向(xiang)(xiang)鐵(tie)(tie)芯，從(cong)而(er)(er)帶(dai)動(dong)銜(xian)(xian)鐵(tie)(tie)的(de)(de)(de)(de)動(dong)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)與靜觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)（常(chang)(chang)(chang)開(kai)(kai)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)）吸合(he)。當(dang)(dang)線(xian)圈(quan)(quan)(quan)斷電(dian)(dian)(dian)(dian)(dian)(dian)后(hou)，電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)的(de)(de)(de)(de)吸力(li)(li)也隨之消失，銜(xian)(xian)鐵(tie)(tie)就(jiu)(jiu)會在彈簧(huang)(huang)的(de)(de)(de)(de)反作(zuo)(zuo)(zuo)(zuo)(zuo)用力(li)(li)返(fan)回原來的(de)(de)(de)(de)位置(zhi)，使(shi)動(dong)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)與原來的(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)（常(chang)(chang)(chang)閉(bi)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)）釋放(fang)。這樣吸合(he)、釋放(fang)，從(cong)而(er)(er)達到(dao)了在電(dian)(dian)(dian)(dian)(dian)(dian)路中的(de)(de)(de)(de)導通、切斷的(de)(de)(de)(de)目的(de)(de)(de)(de)。對于(yu)繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)“常(chang)(chang)(chang)開(kai)(kai)、常(chang)(chang)(chang)閉(bi)”觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)，可(ke)以(yi)這樣來區分：繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)線(xian)圈(quan)(quan)(quan)未通電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)處(chu)于(yu)斷開(kai)(kai)狀態的(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)，稱(cheng)為(wei)(wei)“常(chang)(chang)(chang)開(kai)(kai)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)”；處(chu)于(yu)接通狀態的(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)稱(cheng)為(wei)(wei)“常(chang)(chang)(chang)閉(bi)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)”。繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)一(yi)(yi)般(ban)有(you)兩股(gu)電(dian)(dian)(dian)(dian)(dian)(dian)路，為(wei)(wei)低壓(ya)(ya)控制電(dian)(dian)(dian)(dian)(dian)(dian)路和(he)高壓(ya)(ya)工作(zuo)(zuo)(zuo)(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)路。當(dang)(dang)線(xian)圈(quan)(quan)(quan)通電(dian)(dian)(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)規格有(you)ac380v、ac220v或dc220v、dc24v等）時(shi)，銜(xian)(xian)鐵(tie)(tie)及托(tuo)板被(bei)鐵(tie)(tie)心吸引而(er)(er)瞬時(shi)下移，使(shi)瞬時(shi)動(dong)作(zuo)(zuo)(zuo)(zuo)(zuo)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)接通或斷開(kai)(kai)。但是活塞(sai)(sai)(sai)桿和(he)杠桿不能同時(shi)跟著銜(xian)(xian)鐵(tie)(tie)一(yi)(yi)起下落，因為(wei)(wei)活塞(sai)(sai)(sai)桿的(de)(de)(de)(de)上(shang)(shang)端連著氣(qi)室中的(de)(de)(de)(de)橡皮膜，當(dang)(dang)活塞(sai)(sai)(sai)桿在釋放(fang)彈簧(huang)(huang)的(de)(de)(de)(de)作(zuo)(zuo)(zuo)(zuo)(zuo)用下開(kai)(kai)始向(xiang)(xiang)下運動(dong)時(shi)，橡皮膜隨之向(xiang)(xiang)下凹，上(shang)(shang)面空(kong)氣(qi)室的(de)(de)(de)(de)空(kong)氣(qi)變(bian)得稀薄而(er)(er)使(shi)活塞(sai)(sai)(sai)桿受到(dao)阻尼(ni)作(zuo)(zuo)(zuo)(zuo)(zuo)用而(er)(er)緩慢下降。經過一(yi)(yi)定時(shi)間，活塞(sai)(sai)(sai)桿下降到(dao)一(yi)(yi)定位置(zhi)，便通過杠桿推動(dong)延(yan)時(shi)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)動(dong)作(zuo)(zuo)(zuo)(zuo)(zuo)，使(shi)動(dong)斷觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)斷開(kai)(kai)，動(dong)合(he)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)閉(bi)合(he)。從(cong)線(xian)圈(quan)(quan)(quan)通電(dian)(dian)(dian)(dian)(dian)(dian)到(dao)延(yan)時(shi)觸(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)完(wan)成動(dong)作(zuo)(zuo)(zuo)(zuo)(zuo)，這段時(shi)間就(jiu)(jiu)是繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)延(yan)時(shi)時(shi)間。延(yan)時(shi)時(shi)間的(de)(de)(de)(de)長(chang)短(duan)可(ke)以(yi)用螺(luo)釘(ding)調節空(kong)氣(qi)室進氣(qi)孔(kong)的(de)(de)(de)(de)大小(xiao)來改(gai)變(bian)。

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)互感(gan)器原(yuan)理(li)線路圖微型(xing)電(dian)(dian)流(liu)互感(gan)器與變(bian)壓(ya)器類似也是(shi)(shi)根據電(dian)(dian)磁感(gan)應原(yuan)理(li)工(gong)作，變(bian)壓(ya)器變(bian)換的(de)是(shi)(shi)電(dian)(dian)壓(ya)而微型(xing)電(dian)(dian)流(liu)互感(gan)器變(bian)換的(de)是(shi)(shi)電(dian)(dian)流(liu)罷(ba)了。繞(rao)組(zu)N1接被(bei)測電(dian)(dian)流(liu)，稱為一次繞(rao)組(zu)（或原(yuan)邊繞(rao)組(zu)、初級繞(rao)組(zu)）；繞(rao)組(zu)N2接測量儀(yi)表，稱為二次繞(rao)組(zu)（或副邊繞(rao)組(zu)、次級繞(rao)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    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