高温条件下波导杆的在线损伤检测
On-line Damage Detection of Wave-Guiding Rods Under High Temperature Conditions
摘 要
高温条件下进行声发射检测时，常温传感器不能直接耦合在被测对象的表面上，需要利用波导杆将传感器与被测对象连接起来。因此，为了实际检测的方便，开展了波导杆辅助检测工具的特性研究，分析了波导杆材料、直径、长度等对声发射检测的影响。
波导杆
信号分析
傅里叶变换
acoustic emission
wave-guiding rod
signal analysis
FOURIER transform
Abstract
Under high temperature, the acoustic emission sensors cannot be coupled directly onto the surface of the object to be measured,so the wave-guiding rod is used to connect the sensor and the measured object. Therefore,for the convenience of the scene detection,it is necessary to carry out studies on the characteristics of the wave-guiding rod auxiliary detection tool,the influence of the material, diameter and length of the waveguide rod on the acoustic emission detection results is analyzed.
中图分类号 TG115.28 DOI 10.11973/wsjc201909016
所属栏目 试验研究
基金项目
收稿日期 2018/12/28
修改稿日期
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备注宫永辉(1986-),男,工程师,主要从事结构热强度试验技术
引用该论文: GONG Yonghui,WU Xiaofeng,YIN Xiaofeng,LIU Wugang,XIAO Naifeng. On-line Damage Detection of Wave-Guiding Rods Under High Temperature Conditions[J]. Nondestructive Testing, 2019, 41(9): 70～74
宫永辉,武小峰,尹晓峰,刘武刚,肖乃风. 高温条件下波导杆的在线损伤检测[J]. 无损检测, 2019, 41(9): 70～74
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参考文献
【1】杨丽. 热障涂层氧化、损伤与断裂的无损评价研究[D]. 湘潭:湘潭大学, 2007.
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【3】MBA D. The use of acoustic emission for estimation of bearing defect size[J]. Journal of Failure Analysis and Prevention, 2008, 8(2):188-192.
【4】MUENTER N, KNAPPMANN S, MORSBACH C, et al. Acoustic emission (AE) measurements to determine the dynamic flying characteristics of optical sliders[J]. Microsystem Technologies, 2006, 13(2):173-175.
【2】秦国栋, 刘志明. 声发射测试系统的发展[J]. 测试技术学报, 2004, 18(3):274-279.
【3】MBA D. The use of acoustic emission for estimation of bearing defect size[J]. Journal of Failure Analysis and Prevention, 2008, 8(2):188-192.
【4】MUENTER N, KNAPPMANN S, MORSBACH C, et al. Acoustic emission (AE) measurements to determine the dynamic flying characteristics of optical sliders[J]. Microsystem Technologies, 2006, 13(2):173-175.
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