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就两种最具代表性的自动热量计 ,在完全相同的条件下进行性能测试。性能测试表明 :2种自动热量计的测热精密度相近 ,均符合中国标准要求 ;美制自动热量计测热准确度不及国产自动热量计 ,这主要因前者测热周期为 8min,后者为 1 7.5 min,缩短测热周期往往以降低或牺牲测热准确度为代价 ;2种自动热量计的测热精密度、准确度、仪器可靠性、操作方便性、测热周期、材质与加工工艺、价格等性能 ,各有利弊 ,应依其综合性能 ,特别是测热精密度、准确度及仪器的可靠性作为主要选择依据
On the two most representative automatic calorimeter, under the same conditions for performance testing. Performance tests show that the accuracy of the two kinds of automatic calorimeters are in line with the Chinese standards. The accuracy of automatic calorimeter measurement in the US is less than that of the domestic automatic calorimeter. This is mainly because the former has a heat measuring period of 8 minutes and the latter one 7.5 min, shorten the heat measurement cycle is often to reduce or sacrifice the accuracy of the heat measurement at the expense of; 2 kinds of automatic calorimeter heat measurement precision, accuracy, instrument reliability, ease of operation, heat measurement cycle, material and processing technology, Price and other performance, each have their own advantages and disadvantages, should be based on its comprehensive performance, in particular the precision heat measurement, accuracy and reliability of the instrument as the main choice