傳感器和變送器的區別
傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)本是(shi)熱工(gong)儀(yi)(yi)(yi)表(biao)的(de)(de)(de)(de)(de)概念。傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)是(shi)把(ba)非(fei)電(dian)物理量(liang)如(ru)溫(wen)度、壓力、液位、物料、氣(qi)體(ti)特(te)性等(deng)轉換(huan)(huan)(huan)成(cheng)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)或(huo)(huo)把(ba)物理量(liang)如(ru)壓力、液位等(deng)直接送(song)到變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)則是(shi)把(ba)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)采集到的(de)(de)(de)(de)(de)微弱(ruo)的(de)(de)(de)(de)(de)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)放(fang)大(da)(da)以(yi)(yi)便(bian)轉送(song)或(huo)(huo)啟動控(kong)(kong)(kong)制(zhi)(zhi)元(yuan)件(jian)(jian)(jian)。 傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)是(shi)能夠受規定的(de)(de)(de)(de)(de)被測(ce)量(liang)并按(an)照一(yi)(yi)定的(de)(de)(de)(de)(de)規律轉換(huan)(huan)(huan)成(cheng)可用輸(shu)出信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)的(de)(de)(de)(de)(de)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)件(jian)(jian)(jian)或(huo)(huo)裝置的(de)(de)(de)(de)(de)總稱,通常由敏感(gan)(gan)(gan)元(yuan)件(jian)(jian)(jian)和(he)轉換(huan)(huan)(huan)元(yuan)件(jian)(jian)(jian)組成(cheng)。當傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)輸(shu)出為(wei)規定的(de)(de)(de)(de)(de)標(biao)準(zhun)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)時(shi)，則稱為(wei)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。 變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)概念是(shi)將(jiang)非(fei)標(biao)準(zhun)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)轉換(huan)(huan)(huan)為(wei)標(biao)準(zhun)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)的(de)(de)(de)(de)(de)儀(yi)(yi)(yi)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)，傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)則是(shi)將(jiang)物理信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)轉換(huan)(huan)(huan)為(wei)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)的(de)(de)(de)(de)(de)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)件(jian)(jian)(jian)，過(guo)去常講(jiang)物理信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)，現(xian)在其(qi)他信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)也有了。一(yi)(yi)次(ci)(ci)儀(yi)(yi)(yi)表(biao)指現(xian)場測(ce)量(liang)儀(yi)(yi)(yi)表(biao)或(huo)(huo)基地控(kong)(kong)(kong)制(zhi)(zhi)表(biao)，二次(ci)(ci)儀(yi)(yi)(yi)表(biao)指利用一(yi)(yi)次(ci)(ci)表(biao)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)完成(cheng)其(qi)他功能：諸如(ru)控(kong)(kong)(kong)制(zhi)(zhi)，顯示等(deng)功能的(de)(de)(de)(de)(de)儀(yi)(yi)(yi)表(biao)。 傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)本是(shi)熱工(gong)儀(yi)(yi)(yi)表(biao)的(de)(de)(de)(de)(de)概念。傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)是(shi)把(ba)非(fei)電(dian)物理量(liang)如(ru)溫(wen)度、壓力、液位、物料、氣(qi)體(ti)特(te)性等(deng)轉換(huan)(huan)(huan)成(cheng)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)或(huo)(huo)把(ba)物理量(liang)如(ru)壓力、液位等(deng)直接送(song)到變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)則是(shi)把(ba)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)采集到的(de)(de)(de)(de)(de)微弱(ruo)的(de)(de)(de)(de)(de)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)放(fang)大(da)(da)以(yi)(yi)便(bian)轉送(song)或(huo)(huo)啟動控(kong)(kong)(kong)制(zhi)(zhi)元(yuan)件(jian)(jian)(jian)。或(huo)(huo)將(jiang)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)輸(shu)入的(de)(de)(de)(de)(de)非(fei)電(dian)量(liang)轉換(huan)(huan)(huan)成(cheng)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)同時(shi)放(fang)大(da)(da)以(yi)(yi)便(bian)供遠方測(ce)量(liang)和(he)控(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)(de)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)源。根據需(xu)要(yao)還(huan)(huan)可將(jiang)模擬量(liang)變(bian)(bian)換(huan)(huan)(huan)為(wei)數(shu)字量(liang)。傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)一(yi)(yi)同構成(cheng)自動控(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)(de)監測(ce)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)源。不同的(de)(de)(de)(de)(de)物理量(liang)需(xu)要(yao)不同的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)相應的(de)(de)(de)(de)(de)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。還(huan)(huan)有一(yi)(yi)種(zhong)(zhong)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)不是(shi)將(jiang)物理量(liang)變(bian)(bian)換(huan)(huan)(huan)成(cheng)電(dian)信(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)(hao)(hao)，如(ru)一(yi)(yi)種(zhong)(zhong)鍋爐(lu)水位計的(de)(de)(de)(de)(de)“差壓變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)”，他是(shi)將(jiang)液位傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)里的(de)(de)(de)(de)(de)下(xia)部的(de)(de)(de)(de)(de)水和(he)上部蒸汽的(de)(de)(de)(de)(de)冷凝(ning)水通過(guo)儀(yi)(yi)(yi)表(biao)管送(song)到變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)波紋管兩側，以(yi)(yi)波紋管兩側的(de)(de)(de)(de)(de)差壓帶動機械放(fang)大(da)(da)裝置用指針(zhen)指示水位的(de)(de)(de)(de)(de)一(yi)(yi)種(zhong)(zhong)遠方儀(yi)(yi)(yi)表(biao)。當然還(huan)(huan)有把(ba)電(dian)氣(qi)模擬量(liang)變(bian)(bian)換(huan)(huan)(huan)成(cheng)數(shu)字量(liang)的(de)(de)(de)(de)(de)也可以(yi)(yi)叫(jiao)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)。以(yi)(yi)上只是(shi)從概念上說明傳(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)和(he)變(bian)(bian)送(song)器(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)區別(bie)