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攪拌站計量系統出故障了怎么辦（二）
發布日期：2015-11-05 | 來源：greennju.cn | 責任編輯：河北雙星機械

二(er) 故(gu)障的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)判(pan)(pan)斷(duan)(duan)與修復傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)故(gu)障的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)分(fen)折與修理首(shou)先要(yao)判(pan)(pan)斷(duan)(duan)是(shi)(shi)(shi)(shi)(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題(ti)(ti)還是(shi)(shi)(shi)(shi)(shi)(shi)其它(ta)問(wen)題(ti)(ti)，大(da)(da)(da)(da)(da)致(zhi)(zhi)可(ke)(ke)(ke)(ke)(ke)以(yi)用(yong)(yong)(yong)以(yi)下幾種方法(fa)(fa)來(lai)確定。智能(neng)(neng)(neng)(neng)儀(yi)表(biao)(biao)(biao)(biao)(biao)（如(ru)(ru)(ru)PT650儀(yi)表(biao)(biao)(biao)(biao)(biao)）一(yi)(yi)般(ban)都能(neng)(neng)(neng)(neng)指示(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)壞(huai)(huai)(huai)，若(ruo)(ruo)儀(yi)表(biao)(biao)(biao)(biao)(biao)顯示(shi)值(zhi)(zhi)(zhi)為"OL"或(huo)(huo)"-OL"，那(nei)(nei)么一(yi)(yi)般(ban)都是(shi)(shi)(shi)(shi)(shi)(shi) 傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)原(yuan)(yuan)因(yin)。如(ru)(ru)(ru)果(guo)僅用(yong)(yong)(yong)放大(da)(da)(da)(da)(da)器(qi)(qi)(qi)(qi)(qi)形式(shi)就(jiu)比較(jiao)難判(pan)(pan)斷(duan)(duan)。發(fa)現(xian)(xian)(xian)某種材料突(tu)然(ran)多(duo)稱或(huo)(huo)少(shao)稱，而(er)且沒有(you)(you)轉好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)跡象，但(dan)是(shi)(shi)(shi)(shi)(shi)(shi)其它(ta)控制都正常，一(yi)(yi)般(ban)也(ye)要(yao)注意(yi)是(shi)(shi)(shi)(shi)(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)原(yuan)(yuan) 因(yin)。用(yong)(yong)(yong)"壓(ya)(ya)角"的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)辦法(fa)(fa)判(pan)(pan)斷(duan)(duan)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)壞(huai)(huai)(huai)。所謂"壓(ya)(ya)角"就(jiu)是(shi)(shi)(shi)(shi)(shi)(shi)把砝(fa)碼或(huo)(huo)其它(ta)重(zhong)物，輪流放在(zai)其中一(yi)(yi)只(zhi)(zhi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)位置(zhi)上，看(kan)儀(yi)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)顯示(shi)或(huo)(huo)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)(chu)，若(ruo)(ruo)發(fa)現(xian)(xian)(xian)某只(zhi)(zhi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)上數值(zhi)(zhi)(zhi)變(bian)(bian)(bian)化很(hen)大(da)(da)(da)(da)(da)或(huo)(huo)很(hen)小(xiao)(xiao)，那(nei)(nei)么這(zhe)只(zhi)(zhi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)就(jiu)有(you)(you)問(wen) 題(ti)(ti)。一(yi)(yi)般(ban)講來(lai)數值(zhi)(zhi)(zhi)變(bian)(bian)(bian)化很(hen)大(da)(da)(da)(da)(da)是(shi)(shi)(shi)(shi)(shi)(shi)由(you)于(yu)(yu)(yu)(yu)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)疲勞損(sun)壞(huai)(huai)(huai)，形變(bian)(bian)(bian)太大(da)(da)(da)(da)(da)；數值(zhi)(zhi)(zhi)變(bian)(bian)(bian)化很(hen)小(xiao)(xiao)是(shi)(shi)(shi)(shi)(shi)(shi)由(you)于(yu)(yu)(yu)(yu)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)內(nei)部(bu)(bu)(bu)應(ying)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu) 受潮(chao)(chao)脫膠所致(zhi)(zhi)，當然(ran)要(yao)首(shou)先排除傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)不受力的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)情況。如(ru)(ru)(ru)何(he)判(pan)(pan)斷(duan)(duan)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)壞(huai)(huai)(huai)？一(yi)(yi)般(ban)可(ke)(ke)(ke)(ke)(ke)分(fen)成電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)法(fa)(fa)、電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)法(fa)(fa)、壓(ya)(ya)角法(fa)(fa)來(lai)找出(chu)(chu)故(gu)障點。（壓(ya)(ya)角法(fa)(fa)前(qian)面已寫過） 1、電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)法(fa)(fa) 根據(ju)電(dian)(dian)(dian)(dian)(dian)橋原(yuan)(yuan)理：RAB大(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)RA或(huo)(huo)RB、RCD大(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)RC和(he)(he)RD，電(dian)(dian)(dian)(dian)(dian)橋的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)大(da)(da)(da)(da)(da)于(yu)(yu)(yu)(yu)一(yi)(yi)臂(bei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)。通(tong)(tong)過測(ce)(ce)(ce)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)大(da)(da)(da)(da)(da)致(zhi)(zhi)可(ke)(ke)(ke)(ke)(ke)以(yi)判(pan)(pan) 斷(duan)(duan)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)壞(huai)(huai)(huai)。目前(qian)國內(nei)大(da)(da)(da)(da)(da)多(duo)使(shi)用(yong)(yong)(yong)內(nei)阻(zu)(zu)(zu)是(shi)(shi)(shi)(shi)(shi)(shi)350Ω左右(you)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)，一(yi)(yi)般(ban)RAB=370Ω左右(you)，RCD=350Ω左右(you)，而(er)RA≈RB≈RC≈RD≈240Ω左右(you)。若(ruo)(ruo)用(yong)(yong)(yong)三個(ge)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)并聯(lian)(lian)，則RAB≈130Ω左右(you)，RCD≈120Ω左右(you)，通(tong)(tong)過測(ce)(ce)(ce)出(chu)(chu) 橋壓(ya)(ya)端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)和(he)(he)輸(shu)出(chu)(chu)端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)大(da)(da)(da)(da)(da)致(zhi)(zhi)可(ke)(ke)(ke)(ke)(ke)以(yi)判(pan)(pan)斷(duan)(duan)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)是(shi)(shi)(shi)(shi)(shi)(shi)否好(hao)壞(huai)(huai)(huai)。如(ru)(ru)(ru)果(guo)使(shi)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)是(shi)(shi)(shi)(shi)(shi)(shi)PT650儀(yi)表(biao)(biao)(biao)(biao)(biao)，只(zhi)(zhi)要(yao)把聯(lian)(lian)接(jie)(jie)(jie)(jie)(jie)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)插頭拔下，直接(jie)(jie)(jie)(jie)(jie)測(ce)(ce)(ce)量(liang)1-2端(duan)(duan)RCD電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)和(he)(he)3-4端(duan)(duan)RAB電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)。典型的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)現(xian)(xian)(xian)象：例(li)1：某點電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)無窮大(da)(da)(da)(da)(da)，說明聯(lian)(lian)接(jie)(jie)(jie)(jie)(jie)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)這(zhe)一(yi)(yi)條線(xian)(xian)(xian)(xian)斷(duan)(duan)了(le)(le)，例(li)如(ru)(ru)(ru)RAB=RAD=RAC=∞，則A線(xian)(xian)(xian)(xian)斷(duan)(duan)了(le)(le)。可(ke)(ke)(ke)(ke)(ke)能(neng)(neng)(neng)(neng)是(shi)(shi)(shi)(shi)(shi)(shi)聯(lian)(lian)線(xian)(xian)(xian)(xian) 斷(duan)(duan)路(lu)，也(ye)可(ke)(ke)(ke)(ke)(ke)能(neng)(neng)(neng)(neng)是(shi)(shi)(shi)(shi)(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)內(nei)部(bu)(bu)(bu)斷(duan)(duan)線(xian)(xian)(xian)(xian)，只(zhi)(zhi)要(yao)到(dao)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)附(fu)近去(qu)測(ce)(ce)(ce)量(liang)即可(ke)(ke)(ke)(ke)(ke)。例(li)2：某一(yi)(yi)端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)近似零，則說明這(zhe)一(yi)(yi)路(lu)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)短路(lu)了(le)(le)，再到(dao)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)附(fu)近去(qu)測(ce)(ce)(ce)量(liang)，就(jiu)能(neng)(neng)(neng)(neng)判(pan)(pan)斷(duan)(duan)是(shi)(shi)(shi)(shi)(shi)(shi)連接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)短路(lu)還是(shi)(shi)(shi)(shi)(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)內(nei)部(bu)(bu)(bu)燒毀短路(lu)。以(yi)上兩(liang)種情況經常會(hui)碰到(dao)，若(ruo)(ruo)是(shi)(shi)(shi)(shi)(shi)(shi)線(xian)(xian)(xian)(xian)路(lu)問(wen)題(ti)(ti)修復也(ye)快，若(ruo)(ruo)是(shi)(shi)(shi)(shi)(shi)(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)問(wen)題(ti)(ti)就(jiu)只(zhi)(zhi)能(neng)(neng)(neng)(neng)更換同(tong)型號的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)了(le)(le)。例(li)3：若(ruo)(ruo)測(ce)(ce)(ce)出(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)和(he)(he)臂(bei)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)差不多(duo)大(da)(da)(da)(da)(da)，而(er)且隨著測(ce)(ce)(ce)量(liang)時(shi)間(jian)(jian)加長(chang)，電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)也(ye)在(zai)變(bian)(bian)(bian)化，那(nei)(nei)么一(yi)(yi)般(ban)是(shi)(shi)(shi)(shi)(shi)(shi)接(jie)(jie)(jie)(jie)(jie)頭處(chu)受潮(chao)(chao)或(huo)(huo)有(you)(you)不嚴(yan)重(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)短路(lu)現(xian)(xian)(xian)象，特(te)別(bie)是(shi)(shi)(shi)(shi)(shi)(shi)對于(yu)(yu)(yu)(yu)那(nei)(nei)種使(shi)用(yong)(yong)(yong)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)盒(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，如(ru)(ru)(ru)果(guo)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)盒(he)密封(feng)不好(hao)，或(huo)(huo)天氣原(yuan)(yuan)因(yin)常會(hui) 使(shi)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)盒(he)內(nei)部(bu)(bu)(bu)受潮(chao)(chao)。如(ru)(ru)(ru)果(guo)發(fa)現(xian)(xian)(xian)此類現(xian)(xian)(xian)象，檢(jian)查傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)頭處(chu)或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)盒(he)，發(fa)現(xian)(xian)(xian)受潮(chao)(chao)就(jiu)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)風機吹(chui)(chui)干(gan)即可(ke)(ke)(ke)(ke)(ke) 。特(te)殊的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)情況，對于(yu)(yu)(yu)(yu)那(nei)(nei)種密封(feng)程度(du)不好(hao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)也(ye)容(rong)易(yi)受潮(chao)(chao)，例(li)如(ru)(ru)(ru)S型傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)表(biao)(biao)(biao)(biao)(biao)面有(you)(you)一(yi)(yi)塊標(biao)牌(pai)(pai)，標(biao)牌(pai)(pai)里面就(jiu)是(shi)(shi)(shi)(shi)(shi)(shi)應(ying)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)片，時(shi)間(jian)(jian)長(chang)了(le)(le)膠水(shui)變(bian)(bian)(bian)質(zhi)，標(biao)牌(pai)(pai)松動了(le)(le)，也(ye)會(hui)造(zao)成傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)受潮(chao)(chao)，可(ke)(ke)(ke)(ke)(ke)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)風機吹(chui)(chui)干(gan)，但(dan)持續時(shi) 間(jian)(jian)不能(neng)(neng)(neng)(neng)太長(chang)，以(yi)不太熱(re)為宜(yi)，且應(ying)吹(chui)(chui)吹(chui)(chui)停停，加熱(re)持續時(shi)間(jian)(jian)太長(chang)會(hui)把傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)徹底損(sun)壞(huai)(huai)(huai)。 2、電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)法(fa)(fa) 如(ru)(ru)(ru)UAB是(shi)(shi)(shi)(shi)(shi)(shi)橋壓(ya)(ya)，根據(ju)橋壓(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)小(xiao)(xiao)就(jiu)能(neng)(neng)(neng)(neng)大(da)(da)(da)(da)(da)致(zhi)(zhi)判(pan)(pan)斷(duan)(duan)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)VCD的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)小(xiao)(xiao)。目前(qian)國內(nei)所用(yong)(yong)(yong)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)靈敏(min)度(du) 大(da)(da)(da)(da)(da)都是(shi)(shi)(shi)(shi)(shi)(shi)2mV/V，若(ruo)(ruo)橋壓(ya)(ya)是(shi)(shi)(shi)(shi)(shi)(shi)10V，則VCD*大(da)(da)(da)(da)(da)只(zhi)(zhi)能(neng)(neng)(neng)(neng)是(shi)(shi)(shi)(shi)(shi)(shi)20mV。例(li)如(ru)(ru)(ru)一(yi)(yi)個(ge)水(shui)泥秤，秤筒(tong)重(zhong)量(liang)500kg，用(yong)(yong)(yong)了(le)(le)3只(zhi)(zhi)1000kg 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)，橋壓(ya)(ya)是(shi)(shi)(shi)(shi)(shi)(shi)10V，那(nei)(nei)么空(kong)載輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)VCD在(zai)3.3mV左右(you)，水(shui)泥秤上放砝(fa)碼1000kg時(shi)，傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya) VCD則在(zai)10mV左右(you)。根據(ju)這(zhe)個(ge)原(yuan)(yuan)理，用(yong)(yong)(yong)數字萬用(yong)(yong)(yong)表(biao)(biao)(biao)(biao)(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)200mV檔就(jiu)很(hen)容(rong)易(yi)通(tong)(tong)過測(ce)(ce)(ce)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)小(xiao)(xiao)來(lai)判(pan)(pan)斷(duan)(duan) 傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)好(hao)壞(huai)(huai)(huai)了(le)(le)。由(you)于(yu)(yu)(yu)(yu)秤筒(tong)一(yi)(yi)般(ban)都由(you)1～4個(ge)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)組成，傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)不一(yi)(yi)定同(tong)時(shi)損(sun)壞(huai)(huai)(huai)，很(hen)可(ke)(ke)(ke)(ke)(ke)能(neng)(neng)(neng)(neng)只(zhi)(zhi)是(shi)(shi)(shi)(shi)(shi)(shi)其中一(yi)(yi)只(zhi)(zhi)損(sun) 壞(huai)(huai)(huai)，這(zhe)種情況下就(jiu)要(yao)到(dao)現(xian)(xian)(xian)場(chang)把傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)輸(shu)出(chu)(chu)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)(xian)(xian)分(fen)開(kai)，分(fen)別(bie)測(ce)(ce)(ce)出(chu)(chu)各傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)增量(liang)ΔVCD，就(jiu)能(neng)(neng)(neng)(neng)很(hen)快判(pan)(pan)斷(duan)(duan)出(chu)(chu)哪(na)個(ge)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)感(gan)(gan)(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)損(sun)壞(huai)(huai)(huai)了(le)(le)。

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