0130 速度正帰還によって発生する自励振動を利用した生体粘弾性のオンライン測定(G10-5 計測,G10 機械力学・計測制御)

概要

論文の詳細を見る
The method for real time measurement of the dynamic stiffness of an object was developed by the authors. The method uses the self-excited vibration generated by the positive feedback of velocity. Then we showed that viscoelastic coefficients in subcutaneous tissues, which did not depend on measurement conditions, could be quantified with the estimated dynamic stiffness, based on the correspondence principle between the theory of elasticity and viscoelasticity. This paper showed that the response and the accuracy of frequency estimation were improved by using Kalman filter as an adaptive filter. Using numerial simulation of frequency estimation, we compared Kalman filter to Normalizing LMS algorithm which was used as an adaptive filter in former method. We also examined that the response and the accuracy of the frequency estimation improved the response and the accuracy of the viscoelasticity measurement.
一般社団法人日本機械学会の論文
2007-09-07