| 基于四维切片图的相控阵超声辐射声场研究 |
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| 引用本文： | 钱雪微,王召巴,赵霞,陈友兴. 基于四维切片图的相控阵超声辐射声场研究[J]. 压电与声光, 2015, 37(3): 408-412 |
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| 作者姓名： | 钱雪微 王召巴 赵霞 陈友兴 |
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| 作者单位： | (1. 中北大学 信息与通信工程学院，山西 太原030051；,2. 中北大学 电子测试技术国家重点实验室，山西 太原 030051) |
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| 基金项目： | 国家自然科学基金资助项目(61201412)；山西省青年基金资助项目（2012021011 5）；山西省青年学术带头人基金资助项目 |
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| 摘 要： | 声束聚焦是超声相控阵区别于常规超声检测方式的主要特点之一。该文研究了单源矩形换能器与一维线阵的辐射声场。在四维切片图的基础上详细分析了频率、阵元数和阵元间距对声束聚焦时焦斑和焦深的影响,进而分析了对检测分辨力和声压值的影响,换能器参数的优化结果对于相控阵探头的优化设计具有一定的参考价值。
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| 关 键 词： | 声束聚焦 超声相控阵 一维线阵 四维切片图 分辨力 声压值 |
Study on Phased Array Ultrasonic Radiated Sound Field Based on The Four Dimensional Slices |
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| QIAN Xuewei,WANG Zhaob,ZHAO Xia and CHEN Youxing. Study on Phased Array Ultrasonic Radiated Sound Field Based on The Four Dimensional Slices[J]. Piezoelectrics & Acoustooptics, 2015, 37(3): 408-412 |
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| Authors: | QIAN Xuewei WANG Zhaob ZHAO Xia CHEN Youxing |
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| Abstract: | The focusing beam is one of main characters of ultrasonic phased array which differs from the conventional ultrasonic test method. The sound field of monophyletic rectangular transducer and one dimensional linear array were studied in this paper. The effects of frequency, element numbers and space of element space on the focal spot and depth of focus were analyzed based on the four dimensional slice figure. Furthermore, the influence on the resolution and sound pressure value were analyzed The optimized results of transducer parameters have certain reference value for optimal design of phased array probe. |
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| Keywords: | focusing beam ultrasonic phased array one dimensional linear array four dimensional slice figure resolution sound pressure value |
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