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光(guang)(guang)(guang)電(dian)(dian)開關(guan)(guan)（光(guang)(guang)(guang)電(dian)(dian)傳感器(qi)）是(shi)光(guang)(guang)(guang)電(dian)(dian)接(jie)(jie)近開關(guan)(guan)的(de)簡稱，它(ta)是(shi)利用(yong)被檢測(ce)(ce)物對(dui)光(guang)(guang)(guang)束的(de)遮(zhe)擋或反(fan)射(she)，由(you)同步(bu)回(hui)路(lu)接(jie)(jie)通電(dian)(dian)路(lu)，從而檢測(ce)(ce)物體(ti)的(de)有(you)無。物體(ti)不(bu)限于(yu)金屬，所(suo)有(you)能(neng)反(fan)射(she)光(guang)(guang)(guang)線（或者對(dui)光(guang)(guang)(guang)線有(you)遮(zhe)擋作(zuo)用(yong)）的(de)物體(ti)均可以被檢測(ce)(ce)。光(guang)(guang)(guang)電(dian)(dian)開關(guan)(guan)將輸(shu)入電(dian)(dian)流在發射(she)器(qi)上轉(zhuan)換為光(guang)(guang)(guang)信號射(she)出，接(jie)(jie)收器(qi)再根據接(jie)(jie)收到的(de)光(guang)(guang)(guang)線的(de)強(qiang)弱或有(you)無對(dui)目標物體(ti)進行(xing)探(tan)測(ce)(ce)。安防系統中常見的(de)光(guang)(guang)(guang)電(dian)(dian)開關(guan)(guan)煙霧報警器(qi)，工業(ye)中經(jing)常用(yong)它(ta)來計(ji)數(shu)機械臂的(de)運(yun)動次數(shu)。光(guang)(guang)(guang)電(dian)(dian)開關(guan)(guan)是(shi)傳感器(qi)的(de)一種，它(ta)把發射(she)端和接(jie)(jie)收端之間光(guang)(guang)(guang)的(de)強(qiang)弱變化(hua)轉(zhuan)化(hua)為電(dian)(dian)流的(de)變化(hua)以達到探(tan)測(ce)(ce)的(de)目的(de)。由(you)于(yu)光(guang)(guang)(guang)電(dian)(dian)開關(guan)(guan)輸(shu)出回(hui)...

銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)可以通過一(yi)(yi)(yi)定(ding)的(de)(de)方法連接(jie)在(zai)一(yi)(yi)(yi)起。銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)材質不同，因此特(te)性也不相同，想要(yao)把它們連接(jie)在(zai)一(yi)(yi)(yi)起，是需要(yao)通過特(te)殊處理的(de)(de)。那(nei)么(me)纜普電(dian)(dian)(dian)纜中(zhong)銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)為(wei)什(shen)么(me)不能(neng)直接(jie)連接(jie)呢？銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)怎么(me)接(jie)呢？銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)為(wei)什(shen)么(me)不能(neng)直接(jie)連接(jie)呢？一(yi)(yi)(yi)、鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)的(de)(de)電(dian)(dian)(dian)阻(zu)率不同。二、這是比較關鍵的(de)(de)，就是鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)很(hen)空氣中(zhong)很(hen)容易氧化，在(zai)其表面形成(cheng)一(yi)(yi)(yi)層氧化物，再加(jia)上(shang)鋁(lv)(lv)比銅的(de)(de)硬度小，這樣會大大增加(jia)鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)和(he)銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)(xian)接(jie)駁處的(de)(de)接(jie)觸電(dian)(dian)(dian)阻(zu)，當(dang)用電(dian)(dian)(dian)流通過這個接(jie)駁處時(shi)，接(jie)觸電(dian)(dian)(dian)阻(zu)會發熱，如果是大電(dian)(dian)(dian)流，則發熱會很(hen)嚴重，就會把接(jie)駁處燒毀(hui)。三、...

編碼(ma)器(qi)(qi)(qi)(qi)(qi)(qi)是(shi)通過(guo)把(ba)機械角(jiao)(jiao)度(du)物理量(liang)的(de)變(bian)化(hua)轉(zhuan)變(bian)成電(dian)信(xin)(xin)(xin)號的(de)一(yi)種(zhong)裝(zhuang)置；在傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)分類中，他歸屬(shu)于角(jiao)(jiao)位移(yi)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)(qi)。根據編碼(ma)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)這(zhe)一(yi)特性，編碼(ma)器(qi)(qi)(qi)(qi)(qi)(qi)主要用于測(ce)量(liang)轉(zhuan)動物體的(de)角(jiao)(jiao)位移(yi)量(liang)，角(jiao)(jiao)速度(du)，角(jiao)(jiao)加速度(du)，通過(guo)編碼(ma)器(qi)(qi)(qi)(qi)(qi)(qi)把(ba)這(zhe)些(xie)物理量(liang)轉(zhuan)變(bian)成電(dian)信(xin)(xin)(xin)號輸出給(gei)控制系統(tong)(tong)或(huo)儀(yi)表，控制系統(tong)(tong)或(huo)儀(yi)表根據這(zhe)些(xie)量(liang)來(lai)控制驅(qu)動裝(zhuang)置。由圓(yuan)光(guang)(guang)(guang)柵(zha)和指示(shi)光(guang)(guang)(guang)柵(zha)組(zu)成一(yi)對掃(sao)描(miao)系統(tong)(tong),在掃(sao)描(miao)系統(tong)(tong)的(de)一(yi)側投(tou)射一(yi)束紅外光(guang)(guang)(guang),在掃(sao)描(miao)系統(tong)(tong)的(de)另一(yi)側的(de)感(gan)光(guang)(guang)(guang)器(qi)(qi)(qi)(qi)(qi)(qi)件(jian)(jian)(jian)就可以(yi)收到掃(sao)描(miao)光(guang)(guang)(guang)信(xin)(xin)(xin)號;當圓(yuan)光(guang)(guang)(guang)柵(zha)轉(zhuan)動時,感(gan)光(guang)(guang)(guang)器(qi)(qi)(qi)(qi)(qi)(qi)件(jian)(jian)(jian)接(jie)收到的(de)掃(sao)描(miao)光(guang)(guang)(guang)信(xin)(xin)(xin)號會(hui)發生變(bian)化(hua),感(gan)光(guang)(guang)(guang)器(qi)(qi)(qi)(qi)(qi)(qi)件(jian)(jian)(jian)可以(yi)把(ba)光(guang)(guang)(guang)信(xin)(xin)(xin)號轉(zhuan)變(bian)成電(dian)信(xin)(xin)(xin)號并輸...

伺(si)(si)服電機(ji)是(shi)(shi)指在伺(si)(si)服系統中(zhong)控(kong)(kong)(kong)制(zhi)機(ji)械元件運轉(zhuan)的(de)發(fa)動(dong)(dong)(dong)機(ji)，是(shi)(shi)一(yi)種補助馬達間(jian)接變速(su)裝置。可使(shi)(shi)控(kong)(kong)(kong)制(zhi)速(su)度(du)，位(wei)置精度(du)非(fei)常(chang)準確，可以將電壓信(xin)(xin)號轉(zhuan)化為轉(zhuan)矩(ju)和(he)轉(zhuan)速(su)以驅動(dong)(dong)(dong)控(kong)(kong)(kong)制(zhi)對(dui)(dui)象(xiang)。轉(zhuan)子轉(zhuan)速(su)受輸(shu)入信(xin)(xin)號控(kong)(kong)(kong)制(zhi)，并(bing)能(neng)快速(su)反應，在自(zi)動(dong)(dong)(dong)控(kong)(kong)(kong)制(zhi)系統中(zhong)作執行元件，且(qie)具有(you)機(ji)電時間(jian)常(chang)數小、線性度(du)高。產生電磁干擾，對(dui)(dui)環境有(you)要求。因此它可以用(yong)于對(dui)(dui)成(cheng)本敏感的(de)普通工業和(he)民用(yong)場合。伺(si)(si)服系統是(shi)(shi)使(shi)(shi)物體的(de)位(wei)置、方位(wei)、狀態等輸(shu)出被控(kong)(kong)(kong)量能(neng)夠跟隨輸(shu)入目標（或(huo)給定(ding)值）的(de)任意(yi)變化的(de)自(zi)動(dong)(dong)(dong)控(kong)(kong)(kong)制(zhi)系統。伺(si)(si)服電動(dong)(dong)(dong)機(ji)與單(dan)機(ji)異步(bu)電動(dong)(dong)(dong)機(ji)相比，有(you)起動(dong)(dong)(dong)轉(zhuan)矩(ju)大、運行范...

壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)(PressureTransducer)是能感(gan)受壓(ya)(ya)(ya)力(li)(li)(li)信(xin)號(hao)，并能按照(zhao)一定的(de)(de)(de)(de)規律將壓(ya)(ya)(ya)力(li)(li)(li)信(xin)號(hao)轉(zhuan)換成可(ke)用(yong)的(de)(de)(de)(de)輸出(chu)的(de)(de)(de)(de)電信(xin)號(hao)的(de)(de)(de)(de)器(qi)(qi)件或裝(zhuang)置(zhi)。壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)通常由壓(ya)(ya)(ya)力(li)(li)(li)敏(min)感(gan)元件和信(xin)號(hao)處理單元組成。按不同的(de)(de)(de)(de)測試壓(ya)(ya)(ya)力(li)(li)(li)類型(xing)，壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)可(ke)分為表(biao)壓(ya)(ya)(ya)傳(chuan)感(gan)器(qi)(qi)、差(cha)(cha)(cha)壓(ya)(ya)(ya)傳(chuan)感(gan)器(qi)(qi)和絕壓(ya)(ya)(ya)傳(chuan)感(gan)器(qi)(qi)。如何避免壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)的(de)(de)(de)(de)誤差(cha)(cha)(cha)：在(zai)選擇壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)的(de)(de)(de)(de)時候(hou)我們(men)要考慮他的(de)(de)(de)(de)綜合精(jing)度，而壓(ya)(ya)(ya)力(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)的(de)(de)(de)(de)精(jing)度受哪些方面(mian)的(de)(de)(de)(de)影響(xiang)呢?其實造成傳(chuan)感(gan)器(qi)(qi)誤差(cha)(cha)(cha)的(de)(de)(de)(de)因素有(you)很(hen)多，下(xia)面(mian)我們(men)注意說四個無法避免的(de)(de)(de)(de)誤差(cha)(cha)(cha)，這是傳(chuan)感(gan)器(qi)(qi)的(de)(de)(de)(de)初始(shi)誤差(cha)(cha)(cha)。首先的(de)(de)(de)(de)偏移量誤差(cha)(cha)(cha)：由于(yu)壓(ya)(ya)(ya)力(li)(li)(li)...

隨(sui)著伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)技術的(de)發展，從高(gao)扭矩(ju)(ju)密度(du)乃至于(yu)高(gao)功率(lv)密度(du)，使(shi)轉速的(de)提(ti)升(sheng)高(gao)過3000rpm，由于(yu)轉速的(de)提(ti)升(sheng)，使(shi)得伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)的(de)功率(lv)密度(du)大(da)(da)幅提(ti)升(sheng)。哪些(xie)場合需要用到伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)呢?這是(shi)我(wo)們今天(tian)所(suo)要講解的(de)問題。伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)控制(zhi)系統(tong)初用于(yu)船舶的(de)自動駕駛、火炮控制(zhi)和(he)指(zhi)揮儀中，后來逐漸推(tui)廣到很(hen)多領域，特別是(shi)自動車床、天(tian)線位置控制(zhi)和(he)飛船的(de)制(zhi)導等。需提(ti)升(sheng)扭矩(ju)(ju)場合：輸(shu)出扭矩(ju)(ju)提(ti)升(sheng)的(de)方式，可能(neng)采用直接增大(da)(da)伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)的(de)輸(shu)出扭矩(ju)(ju)方式，但(dan)這種方式不(bu)但(dan)必須(xu)使(shi)用昂(ang)貴大(da)(da)功率(lv)的(de)伺(si)(si)(si)(si)(si)服(fu)(fu)(fu)電(dian)機(ji)(ji)，馬達還要有更強壯的(de)結構，扭矩(ju)(ju)的(de)增大(da)(da)正(zheng)比于(yu)控制(zhi)...

如何有效改(gai)善伺服電(dian)機(ji)(ji)的(de)(de)(de)溫升(sheng)問題(ti)？今天伺服驅(qu)動(dong)器小(xiao)(xiao)編分享幾個小(xiao)(xiao)妙招，可依下(xia)(xia)列(lie)步(bu)驟(zou)作(zuo)做檢查及確(que)(que)(que)認(ren)：1.是(shi)否用(yong)(yong)于連(lian)續(xu)運轉的(de)(de)(de)場(chang)(chang)合?伺服電(dian)機(ji)(ji)的(de)(de)(de)特性并不適合于連(lian)續(xu)運轉的(de)(de)(de)場(chang)(chang)合下(xia)(xia)使(shi)用(yong)(yong)，在此場(chang)(chang)合下(xia)(xia)使(shi)用(yong)(yong)時一定會有較(jiao)高的(de)(de)(de)溫升(sheng)產生。請重新確(que)(que)(que)認(ren)機(ji)(ji)構動(dong)作(zuo)需(xu)求條件并重新評(ping)估使(shi)用(yong)(yong)的(de)(de)(de)電(dian)機(ji)(ji)。2.請確(que)(que)(que)認(ren)機(ji)(ji)構動(dong)作(zuo)頻(pin)度(du)、周期?走停(ting)的(de)(de)(de)動(dong)作(zuo)頻(pin)度(du)過高將可能因脈沖(chong)輸入停(ting)止的(de)(de)(de)時間過短而導(dao)致電(dian)流尚(shang)未下(xia)(xia)降就又(you)重新激活，故(gu)此時的(de)(de)(de)溫升(sheng)一定會較(jiao)高。建議您可將動(dong)作(zuo)頻(pin)度(du)降低以改(gai)善溫升(sheng)問題(ti)。3.將RUN電(dian)流調小(xiao)(xiao)情(qing)況可否改(gai)善?在轉矩足夠的(de)(de)(de)情(qing)況下(xia)(xia)...

差壓(ya)信(xin)號(hao)傳送(song)失(shi)(shi)(shi)(shi)(shi)真包括(kuo)穩(wen)(wen)態(tai)值失(shi)(shi)(shi)(shi)(shi)真和(he)(he)動(dong)態(tai)失(shi)(shi)(shi)(shi)(shi)真。在穩(wen)(wen)定流條件下只存在穩(wen)(wen)態(tai)值失(shi)(shi)(shi)(shi)(shi)真，在脈動(dong)流條件下，既可能(neng)存在穩(wen)(wen)態(tai)值失(shi)(shi)(shi)(shi)(shi)真又(you)會有(you)動(dong)態(tai)失(shi)(shi)(shi)(shi)(shi)真。差壓(ya)變送(song)器穩(wen)(wen)態(tai)值失(shi)(shi)(shi)(shi)(shi)真可能(neng)引(yin)(yin)(yin)起(qi)(qi)的(de)部位和(he)(he)原因有(you)導(dao)壓(ya)管(guan)引(yin)(yin)(yin)向(xiang)不(bu)(bu)(bu)合(he)(he)理(li)，切斷閥(fa)設置(zhi)不(bu)(bu)(bu)當，冷凝器高(gao)(gao)度(du)(du)不(bu)(bu)(bu)相等，隔離(li)液液位高(gao)(gao)度(du)(du)不(bu)(bu)(bu)相等，正負壓(ya)引(yin)(yin)(yin)壓(ya)管(guan)坡度(du)(du)不(bu)(bu)(bu)合(he)(he)理(li)，管(guan)內(nei)介質(zhi)(zhi)密度(du)(du)不(bu)(bu)(bu)相等，三閥(fa)組積液等。（1）導(dao)壓(ya)管(guan)引(yin)(yin)(yin)向(xiang)不(bu)(bu)(bu)合(he)(he)理(li)和(he)(he)切斷閥(fa)設置(zhi)不(bu)(bu)(bu)當引(yin)(yin)(yin)起(qi)(qi)的(de)誤差（2）冷凝器高(gao)(gao)度(du)(du)不(bu)(bu)(bu)相等引(yin)(yin)(yin)起(qi)(qi)的(de)誤差（3）隔離(li)液液位高(gao)(gao)度(du)(du)不(bu)(bu)(bu)相等引(yin)(yin)(yin)起(qi)(qi)的(de)誤差（4）引(yin)(yin)(yin)壓(ya)管(guan)線(xian)引(yin)(yin)(yin)起(qi)(qi)的(de)傳送(song)失(shi)(shi)(shi)(shi)(shi)真為了(le)避免正負壓(ya)信(xin)號(hao)管(guan)內(nei)介質(zhi)(zhi)溫(wen)度(du)(du)不(bu)(bu)(bu)一致...