- 专利标题: Transducer transfer impedance calibration device based on spatial frequency domai smoothing technology
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申请号: US16861218申请日: 2020-04-29
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公开(公告)号: US11976961B2公开(公告)日: 2024-05-07
- 发明人: Yi Chen , Liuqing Yang , Xiaofeng Jin , Guanghui Jia , Han Zhao
- 申请人: Zhejiang University
- 申请人地址: CN Hangzhou
- 专利权人: Zhejiang University
- 当前专利权人: Zhejiang University
- 当前专利权人地址: CN Hangzhou
- 主分类号: G01H15/00
- IPC分类号: G01H15/00 ; G01S11/14 ; G01V1/18 ; G01V1/30
摘要:
A transfer impedance calibration device for transducers based on spatial frequency domain smoothing technology is provided. The calibration device comprises a signal transmitter, a power amplifier, a transducer pair, a measurement amplifier, a signal collector, a measurement processor and a current sampler. The device extracts acoustic channel information through the sound filed spatial information or measurement method to design a spatial domain smoothing filter, and then comprehensively processes the transmitted current signal and the received signal through the spatial frequency domain smoothing technology to obtain the transfer impedance of the transducer pair.
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IPC分类:
G | 物理 |
G01 | 测量;测试 |
G01H | 机械振动或超声波、声波或次声波的测量 |
G01H15/00 | 测量力学阻抗或声阻抗 |