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鎧(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)電(dian)(dian)(dian)偶(ou)的(de)(de)(de)工作原理是,兩種(zhong)不同成份的(de)(de)(de)導體(ti)兩端(duan)(duan)(duan)經焊接,形成回(hui)路,直接測溫(wen)端(duan)(duan)(duan)叫工 作端(duan)(duan)(duan),接線(xian)端(duan)(duan)(duan)子端(duan)(duan)(duan)叫冷端(duan)(duan)(duan),也稱參比端(duan)(duan)(duan)。當工作端(duan)(duan)(duan)和參比端(duan)(duan)(duan)存在(zai)溫(wen)差時,就(jiu)會在(zai)回(hui)路中產(chan)生熱(re)(re)(re)(re)電(dian)(dian)(dian) 流(liu),接上(shang)顯示(shi)儀表,儀表上(shang)就(jiu)會指示(shi)出熱(re)(re)(re)(re)電(dian)(dian)(dian)偶(ou)所產(chan)生的(de)(de)(de)熱(re)(re)(re)(re)電(dian)(dian)(dian)動(dong)勢(shi)的(de)(de)(de)對(dui)應溫(wen)度值。 鎧(kai)裝(zhuang)(zhuang)熱(re)(re)(re)(re)電(dian)(dian)(dian)偶(ou)的(de)(de)(de)熱(re)(re)(re)(re)電(dian)(dian)(dian)動(dong)勢(shi)將(jiang)隨著測量端(duan)(duan)(duan)溫(wen)度升高而增長(chang),熱(re)(re)(re)(re)電(dian)(dian)(dian)動(dong)勢(shi)的(de)(de)(de)大小只和熱(re)(re)(re)(re)電(dian)(dian)(dian)偶(ou)導體(ti)材 質以及兩端(duan)(duan)(duan)溫(wen)差有(you)關(guan),和熱(re)(re)(re)(re)電(dian)(dian)(dian)極(ji)的(de)(de)(de)長(chang)度、直徑無(wu)關(guan)。
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