磁巴克豪森应力检测仪研制  

Development of Magnetic Barkhausen Noise Instrument for Stress Measurement

作　　者：郑阳[1] 沈功田[1] 谭继东[1] 张宗健[1] ZHENG Yang;SHEN Gongtian;TAN Jidong;ZHANG Zhongjian(China Special Equipment Inspection And Research Institute,Key Laboratory of Nondestructive Testing and Evaluation of AQSIQ,Beingjing 100029,China)

机构地区：[1]中国特种设备检测研究院国家质量监督检验检疫总局无损检测与评价重点实验室,北京100029

出　　处：《传感技术学报》2018年第4期649-656,共8页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(5737117);国家质量基础的共性技术研究与应用项目(2017YFF0209700);国家质量监督检验检疫总局科技计划项目(2016QK195)

摘　　要：基于磁巴克豪森效应原理研制了一种铁磁性材料应力检测仪。该仪器包含磁巴克豪森传感器、低频连续功率放大器、低噪声小信号放大器和应力标定等多项技术,可对不同铁磁性材料应力状态进行检测与评估。工程现场实验表明所开发的检测仪器具有快速、便捷进行在役设备关键部位应力分布扫描检测的优点,且应力检测灵敏度和准确度高。In this paper,a kind of stress measurement instrument for ferromagnetic material is developed based on the principle of Magnetic Barkhausen Noise.The instrument includes magnetic Barkhausen noise sensor,low frequency continuous power amplifier,low noise small signal amplifier and stress calibration technology.It can testing and evaluate the stress state of different ferromagnetic materials.As the project application results show,it has the advantages of quick and easy stress detection scanning in key parts of in-service equipment.And the stress testing sensitivity and accuracy is good.

关 键 词：铁磁性材料 应力检测 磁巴克豪森 无损检测 

分 类 号：TH89[机械工程—仪器科学与技术]