簡要描述：爐(lu)(lu)頂熱(re)(re)(re)電(dian)(dian)(dian)偶(ou),焚燒爐(lu)(lu)耐磨(mo)熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)適用(yong)于電(dian)(dian)(dian)廠鍋(guo)爐(lu)(lu)爐(lu)(lu)頂及其它(ta)須(xu)遠(yuan)距離、高壓測溫場(chang)合。熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)的(de)工作端(duan)與參(can)比端(duan)存有溫差時，顯(xian)示儀表(biao)將(jiang)會指示出熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)產生的(de)熱(re)(re)(re)電(dian)(dian)(dian)勢(shi)所對應的(de)溫度(du)值。熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)的(de)熱(re)(re)(re)電(dian)(dian)(dian)動熱(re)(re)(re)將(jiang)隨著測量端(duan)溫度(du)升高而增長，它(ta)的(de)大小只與熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)材料和兩(liang)端(duan)的(de)溫度(du)有關，與熱(re)(re)(re)電(dian)(dian)(dian)極(ji)的(de)長度(du)、直徑無關。各種熱(re)(re)(re)電(dian)(dian)(dian)偶(ou)的(de)外形常(chang)因需要而極(ji)不相同(tong)，但(dan)是(shi)它(ta)們的(de)基本結構卻大致相同(tong)，通常(chang)由熱(re)(re)(re)電(dian)(dian)(dian)極(ji)、絕緣套(tao)保護管(guan)和接線(xian)盒等(deng)主要部(bu)分(fen)組成，通常(chang)和顯(xian)示儀表(biao),記錄儀表(biao)和電(dian)(dian)(dian)子調節器配套(tao)使用(yong)。