【摘要】 介绍了测量金属线胀系数实验仪的工作原理,对误差产生的原因进行分析,对J-FG3-D型金属线胀系数测量仪进行改进。比较了改进前后的测量结果,发现改进后实验误差降低、精确度提高、改进简单、成本较低,适宜推广。更多还原

【Abstract】 According to the principle of metal linear expansion coefficient measurement,this paper puts forward the improvement of experiment method to measure the metal linear expansion coefficient,and presents a feasibility analysis report.The method is researched by experiment data and data analysis,the results show that the error analysis is much better.更多还原