METHOD FOR MEASURING ELECTROACOUSTIC PARAMETERS OF TRANSDUCER
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United States of America Patent
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Issued Date -
Apr 10, 2014
app pub date -
Dec 27, 2012
filing date -
Oct 9, 2012
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Abandoned
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Abstract
A method discloses measuring electroacoustic parameters of transducer. With known voice-coil displacement, voice-coil current, transducer impedance and its stimulus signal as inputs, the five calculation procedures of direct problem, adjoint problem, sensitivity problem, conjugate gradient method, and constraint equations are involved in inversely solving electroacoustic parameters. The presented method has the characteristics of high efficiently, low iterations for computational algorithm, and high accuracy for electroacoustic parameters estimation. Through the numerical result and discussion, the relative errors between estimated and accurate electroacoustic parameters are sufficiently small even with the inclusion of the inevitable measurement errors. These results indicate that the presented method has high feasibility for estimating electroacoustic parameters of a transducer.
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