公开(公告)号：US20140098965A1

公开(公告)日：2014-04-10

申请号：US13728445

申请日：2012-12-27

Applicant: FENG CHIA UNIVERSITY

Inventor： Chi-Chang WANG ,  Jin-Huang HUANG ,  Yu-Ting TSAI

IPC: H04R29/00

CPC classification number: H04R29/001 ,  H04R9/06 ,  H04R31/006

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.

Abstract translation: 一种测量换能器电声参数的方法。 通过已知的音圈位移，音圈电流，换能器阻抗及其刺激信号作为输入，直接问题，伴随问题，灵敏度问题，共轭梯度法和约束方程的五个计算过程涉及电声参数的反演。 所提出的方法具有计算算法高效，低迭代，电声参数估计精度高的特点。 通过数值计算结果和讨论，估计和精确的电声参数之间的相对误差即使包含不可避免的测量误差也足够小。 这些结果表明，所提出的方法对于估计换能器的电声参数具有很高的可行性。