Acoustic emission transducer calibration

Details Acoustic emission transducer calibration Acoustic emission transducer calibration

H - Electricity

04

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349/29

H04R 29/00 (2006.01) G01D 18/00 (2006.01) G01N 29/30 (2006.01) G01V 13/00 (2006.01)

Patent

CA 1038486

ACOUSTIC EMISSION TRANSDUCER CALIBRATION ABSTRACT OF THE DISCLOSURE A method of calibrating acoustic emission trans- ducers. The sensitivity of a standard transducer is first determined utilizing a reciprocity calibration technique, and the standard transducer and the acoustic emission trans- ducer are then connected to a bounded acoustic medium. Random acoustic white noise is transmitted into the acoustic medium thereby establishing a multi-mode reverberant sound field, and the output responses from the standard transducer and the acoustic emission transducer to the reverberant sound field are obtained and compared to determine the sen- sitivity of the acoustic emission transducer.

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