| 超声相控线阵探头线列参数对波束指向性的影响 |
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| 引用本文： | 杨天雪,徐春广,肖定国,李爽.超声相控线阵探头线列参数对波束指向性的影响[J].无损检测,2009,31(3):181-185. |
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| 作者姓名： | 杨天雪 徐春广 肖定国 李爽 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081
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| 摘 要： | 在超声相控阵检测过程中，为消除栅瓣，降低旁瓣，减小主瓣角宽度，通过仿真的方法系统地讨论了超声相控线阵探头的阵元数、阵元间距、偏转角度和阵元宽度对指向性和声场的影响。得到了线列参数与指向性的关系，为超声相控线阵探头的设计优化提供了依据。
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| 关 键 词： | 超声波检测 相控线阵探头 波束指向性 线列参数 |
The Influence of Dimensional Parameters of Linear Phased Array Transducer on Beam Directivity |
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| YANG Tian-Xue,XU Chun-Guang,XIAO Ding-Guo,LI Shuang.The Influence of Dimensional Parameters of Linear Phased Array Transducer on Beam Directivity[J].Nondestructive Testing,2009,31(3):181-185. |
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| Authors: | YANG Tian-Xue XU Chun-Guang XIAO Ding-Guo LI Shuang |
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| Affiliation: | YANG Tian-Xue, XU Chun-Guang, XIAO Ding-Guo, LI Shang ( Beijing Institute of Technology, School of Mechanical and Vehicular Engineering, Beijing 100081, China ) |
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| Abstract: | In the ultrasonic phased array test process, in order to suppress grating lobes, reduce side lobes and minimize the width of main lobe, the influence of array element number, interelement spacing, steering angle and element width on beam directivity and ultrasonic pressure field produced by a linear phased array transducer were systematically discussed, through the emulation mode. The relation of beam directivity and dimensional parameters was duced for the optimizing designing of linear phased array transducer. |
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| Keywords: | Ultrasonic testing Linear phased array transducer Beam directivity Dimensional parameters |
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