| 高频聚焦换能器的研制 |
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| 引用本文： | 金翠娥,卢超,李玲,陆铭惠.高频聚焦换能器的研制[J].压电与声光,2011,33(2). |
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| 作者姓名： | 金翠娥 卢超 李玲 陆铭惠 |
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| 作者单位： | 南昌航空大学无损检测教育部重点实验室,江西南昌,330063 |
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| 摘 要： | 介绍制作高频聚焦换能器的相关理论,设计各项工艺参数,介绍了主频为8～10 MHz的聚焦超声换能器的制作过程.论述了换能器性能测试过程,由测试结果及分析可知,换能器发射的脉冲宽度约4个周期,性能优良,能在检测中分辨1 mm平底孔当量的缺陷,基本达到了设计的预期效果.用研制的换能器进行柱塞孔检测,能明显检测到结合层的缺陷波.
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| 关 键 词： | 高频超声 自聚焦换能器 灵敏度 无损捡测 |
Development of High-frequency Ultrasonic Focused Transducer |
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| JIN Cui'e,LU Chao,LI Ling,LU Minghui.Development of High-frequency Ultrasonic Focused Transducer[J].Piezoelectrics & Acoustooptics,2011,33(2). |
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| Authors: | JIN Cui'e LU Chao LI Ling LU Minghui |
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| Affiliation: | JIN Cui'e,LU Chao,LI Ling,LU Minghui(Key Lab.of Nondestructive Testing,Ministry of Education,Nanchang Aeronautics University,Nanchang 330063,China) |
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| Abstract: | The relevant theory and the various process parameters of designing and fabricating the high frequency focused transducer have been introduced in this work.The production process of the focused ultrasonic transducer with the centre frequency of 8~10 MHz was described.The performance testing process of the focused ultrasonic transducer has been discussed.According to the test results and the analysis,the developed transducer has the transmitted pulse width of about four cycles and relatively good performance... |
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| Keywords: | high-frequency ultrasound self-focusing transducer sensitivity non-destructive testing |
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