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Related Articles常用陶瓷管S型B型多種鉑銠熱(re)電(dian)偶(ou)不足之處是熱(re)電(dian)勢(shi),熱(re)電(dian)勢(shi)率較小,靈(ling)敏度(du)(du)低,高溫(wen)下機(ji)械(xie)強度(du)(du)下降,對污染非常敏感,貴(gui)金(jin)屬(shu)材料昂貴(gui),因而一次性投資較大。S型熱(re)電(dian)偶(ou)又叫單鉑銠熱(re)電(dian)偶(ou),它的(de)分度(du)(du)號是S分度(du)(du)號,主要測(ce)量0~1600℃的(de)介質的(de)溫(wen)度(du)(du),是貴(gui)金(jin)屬(shu)熱(re)電(dian)偶(ou)的(de)一個范疇。正常使用在焦(jiao)化廠(chang)(chang)、鋼(gang)廠(chang)(chang)等高溫(wen)使用的(de)場合。
鉑(bo)(bo)銠(lao)(lao)30-鉑(bo)(bo)銠(lao)(lao)6熱電(dian)偶(ou)(B型(xing)(xing)熱電(dian)偶(ou))為(wei)(wei)貴(gui)金屬熱電(dian)偶(ou)。偶(ou)絲的直徑規定為(wei)(wei)0.5mm,可定制。允許(xu)偏(pian)差-0.015mm,其(qi)正極(ji)(BP)的名義化學成(cheng)分(fen)為(wei)(wei)鉑(bo)(bo)銠(lao)(lao)合(he)金, 其(qi)中(zhong)含(han)銠(lao)(lao)為(wei)(wei)30%,含(han)鉑(bo)(bo)為(wei)(wei)70%,負極(ji)(BN)為(wei)(wei)鉑(bo)(bo)銠(lao)(lao)合(he)金,含(han)銠(lao)(lao)為(wei)(wei)量6%,故俗稱雙鉑(bo)(bo)銠(lao)(lao)熱電(dian)偶(ou)。WRR-130 B型(xing)(xing)鉑(bo)(bo)銠(lao)(lao)熱電(dian)偶(ou)泰(tai)州(zhou)雙華儀表有限(xian)公司(si)*
將(jiang)兩個不(bu)同金屬導體焊接在(zai)一(yi)起,構成(cheng)閉合回路,如在(zai)焊接端(duan)(duan)(即(ji)測量(liang)端(duan)(duan))加熱(re)(re)(re)產生溫(wen)差,則在(zai)回路中就會產生熱(re)(re)(re)電(dian)(dian)(dian)動(dong)(dong)勢,此種現象(xiang)稱為(wei)塞貝克效應。如將(jiang)另一(yi)端(duan)(duan)(即(ji)參考端(duan)(duan))溫(wen)度保持一(yi)定(ding)(一(yi)般為(wei)0度),那么回路的熱(re)(re)(re)電(dian)(dian)(dian)動(dong)(dong)勢則變成(cheng)測量(liang)端(duan)(duan)溫(wen)度的單值函數(shu)。   熱(re)(re)(re)電(dian)(dian)(dian)偶產生的熱(re)(re)(re)電(dian)(dian)(dian)動(dong)(dong)勢,其大(da)小與熱(re)(re)(re)電(dian)(dian)(dian)極材料及(ji)兩端(duan)(duan)有關,與熱(re)(re)(re)電(dian)(dian)(dian)極長度,直徑無關。S型鉑(bo)銠熱(re)(re)(re)電(dian)(dian)(dian)偶
WRR-131鉑(bo)銠(lao)(lao)熱(re)(re)電(dian)偶(ou) 鉑(bo)銠(lao)(lao)30-鉑(bo)銠(lao)(lao)6熱(re)(re)電(dian)偶(ou)(B型(xing)熱(re)(re)電(dian)偶(ou))為(wei)(wei)貴(gui)金(jin)屬熱(re)(re)電(dian)偶(ou)。偶(ou)絲直徑規定為(wei)(wei)0.5mm,允(yun)許(xu)偏差-0.015mm,其正極(BP)的名義(yi)化學成分為(wei)(wei)鉑(bo)銠(lao)(lao)合金(jin),其中(zhong)含(han)銠(lao)(lao)為(wei)(wei)30%,含(han)鉑(bo)為(wei)(wei)70%,負極(BN)為(wei)(wei)鉑(bo)銠(lao)(lao)合金(jin),含(han)銠(lao)(lao)為(wei)(wei)量6%,故(gu)俗稱雙(shuang)鉑(bo)銠(lao)(lao)熱(re)(re)電(dian)偶(ou)。WRR-131鉑(bo)銠(lao)(lao)熱(re)(re)電(dian)偶(ou)泰州(zhou)雙(shuang)華儀表有限(xian)公司*
鉑銠(lao)(lao)(lao)30-鉑銠(lao)(lao)(lao)6熱(re)電(dian)偶(ou)(ou)(B型熱(re)電(dian)偶(ou)(ou))為(wei)貴金(jin)屬熱(re)電(dian)偶(ou)(ou)。偶(ou)(ou)絲的直徑規定為(wei)0.5mm,可定制。允許偏差-0.015mm,其正極(BP)的名義化學成分為(wei)鉑銠(lao)(lao)(lao)合金(jin), 其中(zhong)含(han)(han)(han)銠(lao)(lao)(lao)為(wei)30%,含(han)(han)(han)鉑為(wei)70%,負極(BN)為(wei)鉑銠(lao)(lao)(lao)合金(jin),含(han)(han)(han)銠(lao)(lao)(lao)為(wei)量6%,故(gu)俗稱(cheng)雙(shuang)鉑銠(lao)(lao)(lao)熱(re)電(dian)偶(ou)(ou)。WRR-130 B型雙(shuang)鉑銠(lao)(lao)(lao)熱(re)電(dian)偶(ou)(ou)泰(tai)州雙(shuang)華(hua)儀表有(you)限公司*
WRQ-330型帶活動(dong)法(fa)蘭(lan)鉑(bo)(bo)(bo)(bo)銠(lao)(lao)熱電(dian)偶(ou) 鉑(bo)(bo)(bo)(bo)銠(lao)(lao)13-鉑(bo)(bo)(bo)(bo)(R型熱電(dian)偶(ou))為(wei)(wei)貴金屬熱電(dian)偶(ou)。偶(ou)絲直徑規定(ding)為(wei)(wei)0.5mm,允許偏差-0.015mm,其(qi)正極(ji)(RP)的名(ming)義化學成分為(wei)(wei)鉑(bo)(bo)(bo)(bo)銠(lao)(lao)合金,其(qi)中含銠(lao)(lao)為(wei)(wei)13%,含鉑(bo)(bo)(bo)(bo)為(wei)(wei)87%,負極(ji)(RN)為(wei)(wei)純(chun)鉑(bo)(bo)(bo)(bo),長期zui高使用溫度(du)為(wei)(wei)≤1400℃,短期zui高使用溫度(du)為(wei)(wei)1600℃。WRQ-330型帶活動(dong)法(fa)蘭(lan)鉑(bo)(bo)(bo)(bo)銠(lao)(lao)熱電(dian)偶(ou)泰州雙華儀表有限(xian)公司*
S型耐高(gao)溫熱(re)電偶不足之處是(shi)熱(re)電勢(shi),熱(re)電勢(shi)率較(jiao)小,靈敏度(du)低,高(gao)溫下機械強度(du)下降,對污染非(fei)常敏感,貴金屬(shu)材料昂貴,因而一(yi)次性投(tou)資較(jiao)大。S型熱(re)電偶又叫單鉑銠熱(re)電偶,它的(de)(de)分(fen)度(du)號(hao)(hao)是(shi)S分(fen)度(du)號(hao)(hao),主(zhu)要測量0~1600℃的(de)(de)介質的(de)(de)溫度(du),是(shi)貴金屬(shu)熱(re)電偶的(de)(de)一(yi)個范疇。正常使(shi)用(yong)在焦化(hua)廠、鋼廠等高(gao)溫使(shi)用(yong)的(de)(de)場合。S型耐高(gao)溫鉑銠熱(re)電偶泰州雙華(hua)儀表有限公司(si)*
鉑銠熱(re)電(dian)(dian)偶又(you)叫貴金屬熱(re)電(dian)(dian)偶,它作為溫度(du)(du)測(ce)量(liang)傳感器,通常與溫度(du)(du)變送器、調節器及顯示儀(yi)表(biao)等配(pei)套使用(yong),組成(cheng)過程控(kong)制系(xi)統,用(yong)以直(zhi)接測(ce)量(liang)或控(kong)制各種生(sheng)產過程中0-1800℃范圍內的(de)流體(ti)(ti)、蒸汽和氣體(ti)(ti)介(jie)質以及固體(ti)(ti)表(biao)面等溫度(du)(du)。B型雙(shuang)鉑銠熱(re)電(dian)(dian)偶泰州雙(shuang)華(hua)儀(yi)表(biao) *
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