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量熱儀的使用

发布时间：2011-03-09 点击次数：1845次

量熱儀的使用

發熱量是煤質分析的一個很需要項目，是動力用煤的主要質量指標，根據其熱值可推測煤的變質程度，成爲煤炭分類指標的重要參數。煤的發熱量測定對煤炭生産和銷售有著重大貢獻的指導意義。

量熱儀從煤炭檢測儀器方面來講，煤的發熱量測定儀器的使用大體經曆了傳統的貝克曼溫度計量熱儀、智能漢字半自動量熱儀和全自動量熱儀3個階段，其中全自動量熱儀在煤炭檢驗系統中己得到推廣，並且不斷陳出新，大大提高了工作效率和測試結果的准確度。

但是，有些自動快速量熱儀不是用試驗區終點溫度來計算發熱量，而是根據主期中一段時間內的溫度速度通過預先標定出的數學模型來預測終點溫度，通過軟件中的數據處理程序來計算發熱量，量熱儀就更加縮短了試驗周期。

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