文献类型：期刊文献

中文题名：基于2-2压电复合晶片的SH波探头研究及应用

英文题名：Research and Application of SH Wave Probe Based on 2-2 Piezoelectric Composite Chip

作者：李旺明[1];刘晴岩[1];邵佩玉[1]

机构：[1]华东理工大学承压系统安全科学教育部重点实验室,上海200237

年份：2015

卷号：37

期号：3

起止页码：473

中文期刊名：压电与声光

外文期刊名：Piezoelectrics & Acoustooptics

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

语种：中文

中文关键词：奥氏体不锈钢管;焊缝;超声检测;SH波;小口径;2-2压电复合晶片

外文关键词：austenitic stainless steel tube; weld; ultrasonic testingl SH wave; small diameter; 2-2 piezoelectriccomposite chip

摘要：为了获得水平偏振横波(SH波),研制开发了基于2-2压电复合晶片的SH波斜探头。通过研制的SH波探头对小口径奥氏体不锈钢管标准试块和对比试块进行测试对比试验,研究其声衰减及信噪比特性。试验结果表明,基于2-2压电复合晶片的SH波探头可实现对小口径奥氏体不锈钢管焊缝缺陷的检测,且具有较高的检测灵敏度和信噪比。
In order to achieve horizontally-polarized shear wave （SH wave）, SH wave angle transducers with 2- 2 piezoelectric composite chips has been developed, A small diameter austenitic stainless steel tube calibration block and reference block with artificial defects are tested by the developed SH wave probe to study the attenuation and signal to noise ratio of SH wave. Experimental results show that SH wave based on 2-2 piezoelectric composite chips can achieve the purpose of testing defects in weld of small diameter austenitic stainless steel tube. The defect detec- tion sensitivity and the signal-to-noise ratio are relatively high.