摘要
本文对现有的热膨胀系数测量方法进行分析，指出其对于高精度测量的局限性。本文还着重分析了我们自己设计的一套高精度的热膨胀系数测量仪，并通过该仪器测出了一些常用材料的微分膨胀系数。
猅his paper analyzes the existing measuring method of thermal expansion coefficient and points out its disadvantage for high accuracy measurement. This paper also emphasizes the high-accuracy thermal expansion coefficient measuring instrument designed by the authors. At last, the datum of the differential expansion coefficient of some common-used material measured by this instrument is given.
出处
《计量学报》
CSCD
北大核心
1998年第3期216-220,共5页
Acta Metrologica Sinica
基金
国家自然科学基金
关键词
热膨胀
微分膨胀系数
材料力学
测定仪
Thermal expansion
Differential expansion coefficient
Least square method
