Free Field Reciprocity Calibration in a Convergent Spherical Acoustic Wave of a Focusing Transducer

寿文德; 严加勇; 王鸿樟; 钱德初

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Free Field Reciprocity Calibration in a Convergent Spherical Acoustic Wave of a Focusing Transducer

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摘要

Based on the reciprocity theorem of the acoustic field, we derive the formula of the reciprocity coefficient of a convergent spherical acoustic wave and we calculate a series of diffraction corrective factor curves of the reciprocity coefficient of transducers. Using these formulae and corrective factors, we calibrate the free field transmitting current response and the free field voltage sensitivity of a focusing transducer using the self-reciprocity method.The experimental results of the reciprocity calibration of the focusing transducer in the frequency range of 2 MHz to 5.4 MHz are presented.

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《中国物理快报：英文版》 |2002年第8期|1131-1134|共4页
作者
寿文德; 严加勇; 王鸿樟; 钱德初;
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Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030;

Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030;

Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030;

Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030;

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正文语种 chi
中图分类物理学;
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Free Field Reciprocity Calibration in a Convergent Spherical Acoustic Wave of a Focusing Transducer

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