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工作原理

鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)的(de)(de)工作原(yuan)理是(shi)由兩(liang)種不同成份的(de)(de)導(dao)體(ti)兩(liang)端(duan)經(jing)焊接(jie)，形成回路，直(zhi)接(jie)測(ce)溫(wen)端(duan)叫(jiao)(jiao)測(ce)量(liang)端(duan)，接(jie)線(xian)端(duan)叫(jiao)(jiao)參(can)比(bi)端(duan)。當測(ce)量(liang)端(duan)和(he)參(can)比(bi)端(duan)存在溫(wen)差時，就(jiu)(jiu)會在回路中產生熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)，接(jie)上顯示儀(yi)表(biao)，儀(yi)表(biao)上就(jiu)(jiu)會指示出熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)所產生的(de)(de)熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)勢(shi)(shi)的(de)(de)對應溫(wen)度(du)值。鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)的(de)(de)熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)勢(shi)(shi)將隨著測(ce)量(liang)端(duan)的(de)(de)溫(wen)度(du)升高而增長，熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)勢(shi)(shi)的(de)(de)大小(xiao)只和(he)鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)導(dao)體(ti)材質以(yi)及兩(liang)端(duan)溫(wen)差有關，和(he)熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)極的(de)(de)長度(du)，直(zhi)徑無關。鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)的(de)(de)結構是(shi)由導(dao)體(ti)，絕緣氧化鎂和(he)1Cr18Ni9Ti不銹鋼保護管經(jing)多次拉制而成，鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)產品主要由接(jie)線(xian)盒，接(jie)線(xian)端(duan)子和(he)鎧(kai)裝熱(re)(re)(re)(re)(re)(re)電(dian)(dian)(dian)(dian)(dian)(dian)偶(ou)(ou)組(zu)成基本結構，并配以(yi)各種安裝固定裝置組(zu)成。

主(zhu)要(yao)技術(shu)指標

測(ce)溫(wen)范圍(wei)和準(zhun)確度

注：1）t為被測溫度(du)的******值。

鎧(kai)裝(zhuang)熱(re)(re)電偶熱(re)(re)響應時間

在溫度出現階躍變化時，熱電偶的輸出變化至相當于該階躍變化的50%，所需要的時間稱為熱響應時間，用T_0.5表示。

鎧裝熱電偶熱響應時間不大于下(xia)表的規定：

絕緣電阻

當(dang)周(zhou)圍空氣溫度(du)為20±15℃，相對濕度(du)不大于80﹪時，絕(jue)緣型鎧裝熱電(dian)偶(ou)的偶(ou)絲與外套管之(zhi)間的絕(jue)緣電(dian)阻值應符(fu)合下表規定(ding)。

型號表示