| 超声换能器脉冲波声场数值计算与测试 |
| |
| 引用本文： | 徐圆飞,徐春广,肖定国,张迪.超声换能器脉冲波声场数值计算与测试[J].航空学报,2008,29(6):1705-1709. |
| |
| 作者姓名： | 徐圆飞 徐春广 肖定国 张迪 |
| |
| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081 |
| |
| 基金项目： | 国防科学技术工业委员会"十一五"计量项目 |
| |
| 摘 要： | 对超声无损检测中影响缺陷检出率和缺陷评价准确性的换能器脉冲波声场分布特性进行了研究。提出了一种计算超声换能器脉冲波声场声压分布的新方法，计算了不同带宽的换能器脉冲波声场声压分布。研制了测量换能器脉冲波声场的实验系统，实验结果与通过理论计算得到的声场声压分布有较好的一致性。研究结果为仿真换能器脉冲声场提供了一种新方法，同时为提高超声检测的缺陷检出率和缺陷评价的准确性提供了理论依据。
|
| 关 键 词： | 超声检测 无损检测 脉冲波声场 声压分布 连续波声场 缺陷评价 |
Computation and Measurement for Pulse Sound Field of Ultrasonic Transducer |
| |
| Xu Yuanfei,Xu Chunguang,Xiao Dingguo,Zhang Di.Computation and Measurement for Pulse Sound Field of Ultrasonic Transducer[J].Acta Aeronautica et Astronautica Sinica,2008,29(6):1705-1709. |
| |
| Authors: | Xu Yuanfei Xu Chunguang Xiao Dingguo Zhang Di |
| |
| Institution: | Xu Yuanfei,Xu Chunguang,Xiao Dingguo,Zhang Di (School of Mechanical , Vehicular,Beijing Institute of Technology,Beijing 100081,China) |
| |
| Abstract: | The distribution characteristics of the sound field of the pulse wave from an ultrasonic transducer are discussed. It is known that these characteristics influence greatly the ratio of flaw detection and the accuracy of flaw evaluation. A new method to calculate the distribution of sound pressure of a transducer pulse field is proposed. The distribution of sound pressures of transducers with different bandwidths is calculated. An experimental system for the measurement of the transducer pulse field is devel... |
| |
| Keywords: | ultrasonic testing non-destructive testing sound field of pulse wave distribution of sound pressure sound field of continuing wave flaw evaluation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
