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怎樣才能提高全自動量熱儀的測量精度

发布时间：2012-06-11 点击次数：1387次

怎樣才能提高量測量精度呢？在使用量熱儀進行測試前，應注意下例事項：

1 、保持其环境温度稳定不变，要保证量热仪的外桶的温度与琴技充分一致。

2、儀器的熱容量所相對應的溫度應該與當前的溫度是否保持一致。

3、當試驗數次後影響外桶溫度時，在測試發熱量時要插做標准物質的試驗。

4、當熱容量産生變化時，應重新標定熱容量。

全自動量熱儀的外桶外面有一層控溫層，其控溫層內的溫度穩定在設定的溫度點上，因而使其保證外桶溫度長時間內穩定不變。但還要注意量熱儀內外溫度的控制，操作還要正確，這樣全自動量熱儀的測試結果才能更准確。

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