黄运洋,黄颖怡,林志萍

• 1:广东工业大学机电工程学院
• 2:广东工业大学物理与光电工程学院

摘要(Abstract)：

准稳态法测量导热系数实验因操作简便、加热时间较短而被广泛采用。但常规的准稳态法中忽略热扩散方程解的级数部分会导致一个系统误差。使用引入级数部分的改进公式，导热系数变小。而且导热系数依赖于改进公式中含时参数的不同取值。利用改进公式，可以计算在不同的含时指数系数下导热系数的系统误差；也可以计算针对不同材料，可节省的实验时间。准稳态法测量物体导热系数可以作为物理相关专业本科生物理创新实验，帮助大学生掌握导热系数测量原理和系统误差的分析方法。

关键词(KeyWords)： 导热系数;传热学;准稳态;误差分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(批准号：12104009与12274095);; 广州基础与应用基础研究项目(批准号：2024A04J0272)资助的课题

作者(Author): 黄运洋,黄颖怡,林志萍

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