发明名称 |
Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide |
摘要 |
The present invention concerns an acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide. This sensor is characterized in that the source is a piezoelectric pellet that makes it possible for the determination of the acoustic impedance of a passive acoustic element to remain coherent for low frequencies while preserving an inexpensive implementation of the sensor.
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申请公布号 |
US8544327(B2) |
申请公布日期 |
2013.10.01 |
申请号 |
US200913001479 |
申请日期 |
2009.06.26 |
申请人 |
DALMONT JEAN-PIERRE;LE ROUX JEAN-CHRISTOPHE;UNIVERSITE DU MAINE;CENTRE DE TRANSFERT DE TECHNOLOGIE DU MANS |
发明人 |
DALMONT JEAN-PIERRE;LE ROUX JEAN-CHRISTOPHE |
分类号 |
G01H15/00;G01N29/028 |
主分类号 |
G01H15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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