房灵猛,张亚萍,刘金柱,李文政

• 1:中国石油大学(华东)理学院

摘要(Abstract)：

利用超声衰减特性对材料进行无损检测具有重要意义,但当系统温度变化时由于受到诸多因素影响,超声幅值检测存在较大的误差。为了较为准确地研究纵波幅值温变特性,本文设计了一套利用温差热电偶测量样品温度,且在试样温度变化时,仍能使探头温度保持相对稳定和两端压力恒定的装置,在确保各种实验操作细节的基础上,研究温度对探头性能的影响,并得出了固体中超声纵波衰减随着温度的升高而增大的实验结论。

关键词(KeyWords)： 超声衰减;纵波幅值;高温探头;高温耦合剂;热电偶

Abstract:

Keywords:

基金项目(Foundation): 教育部高等学校大学物理课程教学指导委员会高等学校教学研究项目(DWJZW201522hd;DWJZW201603hd);; 山东省本科高校教学改革研究项目(2015M022);; 中国石油大学(华东)研究性教学改革项目和教学改革项目(YK201520;JY-B201635);; 国家级大学生创新创业训练计划项目(201710425067)

作者(Author): 房灵猛,张亚萍,刘金柱,李文政

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