Optimised procedure for the calibration of the force platform location
Optimised procedure for the calibration of the force platform location
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DOI：
10.1016/s0966-6362(02)00061-9
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发表时间：
2003-02-01
期刊：
影响因子：
2.4
通讯作者：
Pedotti, A
中科院分区：
文献类型：
--
作者：
Rabuffetti, M;Ferrarin, M;Pedotti, A
提出了一种光电参考系中力平台位置标定的优化方法，包括实验和数学模型。标定实验采用与平台接触的方位标记物，不直接测量平台位置。设计该实验是为了避免通常采用的方法可能出现的主要缺陷。实验的数学模型估计了预期的地面反应。优化算法将最佳平台位置识别为将校准实验的测量结果与相应的模型估计最佳匹配的位置。创新的校准程序已经从测试仪之间的可靠性方面进行了评估，并与常用的平台位置校准程序进行了比较。这些结果证明了这种优化程序的引入如何可以提高校准平台位置的可靠性，从而提高姿势和步态分析中考虑的运动学变量的可靠性。(C)2002 Elsevier Science B.V.保留所有权利。
An innovative optimised method, including an experiment and a mathematical model, for the calibration of the force platform location in the optoelectronic reference frame is proposed. The calibration experiment adopts a bearing-marker testing object contacting the platform and does not directly measure the platform location. The experiment is designed in order to avoid the main drawbacks possibly occurring in commonly adopted methods. The mathematical model of the experiment estimates the expected ground reaction. An optimisation algorithm identifies the optimal platform location as the one that best matches the measured outcome of the calibration experiment with the corresponding model estimate. The innovative calibration procedure has been assessed in terms of inter-tester reliability and compared with commonly used calibration procedures of platform location. These results evidenced how the introduction of such optimised procedure could improve the reliability of the calibrated platform location and, consequently, of the kinetic variables considered in posture and gait analysis. (C) 2002 Elsevier Science B.V. All rights reserved.