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比热是物质最基本的热物理参数。对于测量物质比热的研究国内外已进行了许多工作。国外如西德Schott厂已将光学玻璃比热的数据列入了产品目录中,作为常规性质指标。国内一些科研单位对固体,液体物质的比热测试也进行了多方面的研究。但到目前为止,对于我国光学玻璃比热测试还没有开展工作。在国内市场上没有定型装置可购用,为了填补光学玻璃平均比热测试方法的空白;为修订光学玻璃国家标准提供测试方法及数据;为研究光学玻璃热学性质提供手段,为此本工作建立了25—100℃温度范围内玻璃平均比热测定仪及测试方法。本仪器测试精度可达到±2％。
Specific heat is the most basic thermophysical parameters of matter. Much work has been done at home and abroad on the study of the specific heat of substances. Abroad, such as West Germany Schott factory has optical glass specific heat data included in the product catalog, as a general indicator of the nature. Some domestic research institutes carried out various aspects of the specific heat test of solid and liquid substances. But so far, no work has been done on the specific heat test of optical glass in China. In the domestic market, there is no stereotyped device available, in order to fill the gaps in the test method for the average specific heat of optical glass; to provide test methods and data for the revision of the national standards of optical glass; to provide means for studying the thermal properties of optical glass. 25-100 ℃ temperature range glass specific heat analyzer and test method. The instrument testing accuracy up to ± 2%.