磁性应力测量条件对应力感度的影响  

Influence of the Condition of Magnetism Stress Measurement on the Stress Sensitivity

作　　者：殷春浩[1] 张雷[1] 吴玉喜[1] 焦扬[1] 

机构地区：[1]中国矿业大学理学院,江苏徐州221008

出　　处：《测试技术学报》2006年第1期11-14,共4页Journal of Test and Measurement Technology

基　　金：国家教育部留学基金资助项目(教外司留2002.247);中国教育部留学回国人员实验室建设及科研经费资助项目(教财函2003.18);中国矿业大学创新团队项目资助项目(2004ZCX012)

摘　　要：磁性应力测量具有测量速度高,探测深度大(可达数毫米),无辐射危险,携带方便等优点.可以对使用中的构件进行实时实地且安全的测量.但磁性应力测量法只能用于铁磁材料并且对铁磁材料结构等因素也敏感.因此,在磁性应力测量中影响测量精度的原因很多,其中一个最主要的参数就是应力感度.本文主要研究了两种材料的应力感度与材料测定条件的关系,以及测定环境对应力感度的影响,从而在磁性测量的过程中能排除不利条件,正确地确定磁性应力的感度,提高磁性应力测量技术的准确度.Magnetism stress measurement method has the merits of high measuring speed, deep detecting depth （up to several millimeters）, no radiation and being easy to take, etc. It can also measure the component real-timely on the spot and safely, even when the component is at work. But this method can only be used to measure the ferromagnetic materials and is also sensitive to some factors like the ferromagnetic materials＇ structure. Therefore, there are many causes that influence the measuring precision in magnetism stress measurement, and the most important parameter in these causes is stress sensitivity. This paper mainly investigated the relationship between the stress sensitivity and the measuring condition of two materials, and the influence of measuring condition on the stress sensitivity, so that the bad conditions could be eliminated, the stress sensitivity could be identified correctly and the accuracy of magnetism stress measurement technology could be improved in the course of the magnetism measurement.

关 键 词：喷砂 应力感度 阻抗 应力测定 

分 类 号：TP206.1[自动化与计算机技术—检测技术与自动化装置]