反(fan)應(ying)腐(fu)一(yi)體(ti)化(hua)溫(wen)度(duo)變(bian)送(song)器(qi)按(an)照(zhao)供(gong)電(dian)方(fang)式(shi)可(ke)分(fen)為(wei)二(er)線(xian)製(zhi)溫(wen)度(duo)變(bian)送(song)器(qi)和(hu)四(si)線(xian)製(zhi)溫(wen)度(duo)變(bian)送(song)器(qi)。二(er)線(xian)製(zhi)溫(wen)度(duo)變(bian)送(song)器(qi)輸(shu)出(chu)端(duan)輸(shu)出(chu)信(xin)號(hao)和(hu)電(dian)源(yuan)共(gong)用(yong)一(yi)根(gen)兩(liang)芯(xin)電(dian)纜(lan)；四(si)線(xian)製(zhi)溫(wen)變(bian)送(song)器(qi)電(dian)源(yuan)用(yong)一(yi)根(gen)兩(liang)芯(xin)電(dian)纜(lan)、輸(shu)出(chu)端(duan)輸(shu)出(chu)信(xin)號(hao)用(yong)一(yi)根(gen)兩(liang)芯(xin)電(dian)纜(lan)。
1、二(er)線(xian)製(zhi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)具(ju)有(you)參(shen)考(kao)端(duan)溫(wen)度(duo)自(zi)動(dong)補(bu)償(chang)時(shi)接(jie)線(xian)
（1）輸(shu)入(ru)信(xin)號(hao)為(wei)熱(re)電(dian)偶(ou)時(shi)，校(jiao)驗(yan)智(zhi)能(neng)溫(wen)度(duo)變(bian)送(song)器(qi)按(an)照(zhao)此(ci)圖(tu)接(jie)線(xian)。其(qi)他(ta)廠(han)家(jia)生(sheng)產(chan)的(di)溫(wen)度(duo)變(bian)送(song)器(qi)接(jie)線(xian)也(ye)相(xiang)同(tong)。
（2）熱(re)電(dian)偶(ou)補(bu)償(chang)導(dao)線(xian)采(cai)用(yong)與(yu)測(ce)量(liang)熱(re)電(dian)偶(ou)對(dui)應(ying)的(di)補(bu)償(chang)導(dao)線(xian)；用(yong)mV信(xin)號(hao)發(fa)生(sheng)器(qi)模(mu)擬(ni)熱(re)電(dian)偶(ou)信(xin)號(hao)；冰(bing)筒(tong)容(rong)器(qi)內(nei)為(wei)冰(bing)、水(shui)混(hun)合(ge)態(tai)，保(bao)持(chi)冷(leng)端(duan)溫(wen)度(duo)為(wei)0℃。
（3）溫(wen)度(duo)變(bian)送(song)器(qi)測(ce)量(liang)方(fang)法(fa)：
根(gen)據(ju)熱(re)電(dian)偶(ou)分(fen)度(duo)表(biao)上(shang)對(dui)應(ying)的(di)電(dian)勢(shi)值(zhi)，直(zhi)接(jie)由(you)毫(hao)伏(fu)信(xin)號(hao)發(fa)生(sheng)器(qi)模(mu)擬(ni)熱(re)電(dian)偶(ou)輸(shu)出(chu)信(xin)號(hao)，測(ce)量(liang)溫(wen)度(duo)變(bian)送(song)器(qi)輸(shu)出(chu)的(di)4-20mA信(xin)號(hao)，計(ji)算(suan)出(chu)變(bian)送(song)器(qi)的(di)測(ce)量(liang)精(jing)度(duo)。
這(zhe)種(zhong)測(ce)量(liang)方(fang)法(fa)可(ke)以(yi)消(xiao)除(chu)測(ce)量(liang)過(guo)程(cheng)中(zhong)冷(leng)端(duan)溫(wen)度(duo)變(bian)化(hua)引(yin)起(qi)的(di)測(ce)量(liang)誤(wu)差(chai)，但(dan)補(bu)償(chang)線(xian)本(ben)身(shen)引(yin)起(qi)的(di)測(ce)量(liang)誤(wu)差(chai)還(huan)是(shi)無(wu)法(fa)消(xiao)除(chu)。這(zhe)種(zhong)方(fang)法(fa)一(yi)般(pan)在(zai)實(shi)驗(yan)室(shi)測(ce)量(liang)和(hu)溫(wen)度(duo)變(bian)送(song)器(qi)生(sheng)產(chan)廠(han)出(chu)廠(han)校(jiao)驗(yan)時(shi)使(shi)用(yong)。
2、二(er)線(xian)製(zhi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)無(wu)參(shen)考(kao)端(duan)溫(wen)度(duo)自(zi)動(dong)補(bu)償(chang)時(shi)，變(bian)送(song)器(qi)校(jiao)驗(yan)接(jie)線(xian)
（1）使(shi)用(yong)於(yu)二(er)線(xian)製(zhi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)無(wu)參(shen)考(kao)端(duan)溫(wen)度(duo)自(zi)動(dong)補(bu)償(chang)時(shi)。
（2）帶(dai)補(bu)償(chang)的(di)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)采(cai)用(yong)實(shi)用(yong)測(ce)量(liang)法(fa)進(jin)行(hang)校(jiao)對(dui)時(shi)，也(ye)采(cai)用(yong)這(zhe)種(zhong)接(jie)線(xian)方(fang)式(shi)：
在(zai)變(bian)送(song)器(qi)輸(shu)入(ru)端(duan)放(fang)置(zhi)一(yi)個(ge)溫(wen)度(duo)計(ji)，測(ce)得(dei)冷(leng)端(duan)溫(wen)度(duo)值(zhi)，由(you)分(fen)度(duo)表(biao)查(cha)得(dei)此(ci)溫(wen)度(duo)電(dian)勢(shi)值(zhi)Eω，再(zai)根(gen)據(ju)熱(re)電(dian)偶(ou)分(fen)度(duo)表(biao)的(di)電(dian)勢(shi)值(zhi)E0，由(you)毫(hao)伏(fu)信(xin)號(hao)發(fa)生(sheng)器(qi)輸(shu)出(chu)（E0-Eω）值(zhi)，即(ji)模(mu)擬(ni)熱(re)電(dian)偶(ou)的(di)輸(shu)出(chu)，測(ce)量(liang)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)4-20mA電(dian)流(liu)輸(shu)出(chu)值(zhi)，計(ji)算(suan)變(bian)送(song)器(qi)的(di)測(ce)量(liang)精(jing)度(duo)。這(zhe)種(zhong)方(fang)法(fa)存(cun)在(zai)環(huan)境(jing)溫(wen)度(duo)變(bian)化(hua)和(hu)溫(wen)度(duo)計(ji)測(ce)量(liang)冷(leng)端(duan)誤(wu)差(chai)兩(liang)方(fang)麵(mian)，無(wu)法(fa)消(xiao)除(chu)這(zhe)兩(liang)方(fang)麵(mian)帶(dai)來(lai)的(di)測(ce)量(liang)誤(wu)差(chai)。因(yin)此(ci)，通(tong)常(chang)作(zuo)為(wei)現(xian)場(chang)零(ling)時(shi)比(bi)對(dui)測(ce)量(liang)時(shi)使(shi)用(yong)，不(bu)做(zuo)為(wei)溫(wen)度(duo)變(bian)送(song)器(qi)檢(jian)定(ding)校(jiao)驗(yan)使(shi)用(yong)。
鉑(bo)電(dian)阻(zu)溫(wen)度(duo)計(ji)校(jiao)驗(yan)接(jie)線(xian)
3、二(er)線(xian)製(zhi)熱(re)電(dian)阻(zu)溫(wen)度(duo)變(bian)送(song)器(qi)校(jiao)驗(yan)接(jie)線(xian)
（1）熱(re)電(dian)阻(zu)信(xin)號(hao)必(bi)須(xu)采(cai)用(yong)三(san)線(xian)製(zhi)接(jie)入(ru)溫(wen)度(duo)變(bian)送(song)器(qi)，有(you)利(li)於(yu)獲(huo)得(dei)更(geng)高(gao)的(di)測(ce)量(liang)精(jing)度(duo)。文(wen)章(zhang)“Pt100兩(liang)線(xian)製(zhi)、Pt100三(san)線(xian)製(zhi)和(hu)Pt100四(si)線(xian)製(zhi)接(jie)線(xian)對(dui)測(ce)溫(wen)精(jing)度(duo)的(di)影(ying)響(xiang)”中(zhong)有(you)詳(xiang)細(xi)介(jie)紹(shao)。三(san)線(xian)製(zhi)要(yao)求(qiu)三(san)根(gen)導(dao)線(xian)的(di)材(cai)質(zhi)、線(xian)徑(jing)、長(zhang)度(duo)一(yi)致(zhi)且(qie)工(gong)作(zuo)溫(wen)度(duo)相(xiang)同(tong)，使(shi)三(san)根(gen)導(dao)線(xian)的(di)電(dian)阻(zu)值(zhi)相(xiang)同(tong)，即(ji)RL1=RL2=RL3。通(tong)過(guo)導(dao)線(xian)L1、L2給(ji)熱(re)電(dian)阻(zu)施(shi)加(jia)激(ji)勵(li)電(dian)流(liu)I，測(ce)得(dei)電(dian)勢(shi)V1、V2、V3。導(dao)線(xian)L3接(jie)入(ru)高(gao)輸(shu)入(ru)阻(zu)抗(kang)電(dian)路(lu)，IL3=0。
（2）智(zhi)能(neng)溫(wen)度(duo)變(bian)送(song)器(qi)輸(shu)入(ru)信(xin)號(hao)為(wei)熱(re)電(dian)阻(zu)時(shi)，校(jiao)驗(yan)智(zhi)能(neng)溫(wen)度(duo)變(bian)送(song)器(qi)按(an)照(zhao)此(ci)圖(tu)接(jie)線(xian)。其(qi)他(ta)廠(han)家(jia)生(sheng)產(chan)的(di)溫(wen)度(duo)變(bian)送(song)器(qi)接(jie)線(xian)也(ye)相(xiang)同(tong)。
帶(dai)補(bu)償(chang)四(si)線(xian)製(zhi)溫(wen)度(duo)變(bian)送(song)器(qi)校(jiao)驗(yan)接(jie)線(xian)
4、四(si)線(xian)製(zhi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)具(ju)有(you)參(shen)考(kao)端(duan)溫(wen)度(duo)自(zi)動(dong)補(bu)償(chang)時(shi)，變(bian)送(song)器(qi)校(jiao)驗(yan)接(jie)線(xian)。
注(zhu)：zui常(chang)見(xian)導(dao)軌(gui)式(shi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)（一(yi)入(ru)一(yi)出(chu)、一(yi)入(ru)二(er)出(chu)等(deng)）和(hu)架(jia)裝(zhuang)式(shi)熱(re)電(dian)偶(ou)溫(wen)度(duo)變(bian)送(song)器(qi)接(jie)線(xian)按(an)照(zhao)接(jie)線(xian)圖(tu)進(jin)行(hang)。