| 矩形聚焦换能器的声场 |
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| 摘 要： | 矩形聚焦换能器的应用十分广泛,但至今还未见到关于这种换能器声场计算方法的研究报道。本文利用傅里叶光学的方法,对矩形聚焦换能器的声场进行了详细的数学分析,并得出实用的计算公式。这对设计矩形聚焦换能器具有一定的实际价值。
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| 关 键 词： | 声场 理论分析 聚焦换能器 矩形换能器 超声波 |
ACOUSTICAL FIELD OF RECTANGULAR FOCUSING TRANSDUCERS |
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| Authors: | Huang Lufeng |
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| Institution: | Huang Lufeng |
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| Abstract: | Rectangular focusing transducers have been used widely. In this paper, by means of Fourier optics the approximate formulae deseribing the acoustical field in the Fresnal zone due to a rectangular focusing transducer has been derived. Some important parameters such as the dimensions of focused region could be calculated from the formulae. |
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| Keywords: | acoustical field theoretical analysis focusing transducer rectangular transducer ultrasound |
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