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báo cáo hóa học: " Wearable Conductive Fiber Sensors for Multi-Axis Human Joint Angle Measurements"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài:Wearable Conductive Fiber Sensors for Multi-Axis Human Joint Angle Measurements | Journal of NeuroEngineering and Rehabilitation BioMed Central Research Open Access Wearable Conductive Fiber Sensors for Multi-Axis Human Joint Angle Measurements Peter T Gibbs and H Harry Asada Address Department of Mechanical Engineering Massachusetts Institute of Technology 77 Massachusetts Ave. 3-351 Cambridge Massachusetts USA Email Peter T Gibbs - pgibbs81@yahoo.com H Harry Asada - asada@mit.edu Corresponding author Published 02 March 2005 Received 31 December 2004 Journal of NeuroEngineering and Rehabilitation 2005 2 7 doi 10.1186 1743-0003-2-7 Accepted 02 March 2005 This article is available from http www.jneuroengrehab.cOm content 2 1 7 2005 Gibbs and Asada licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The practice of continuous long-term monitoring of human joint motion is one that finds many applications especially in the medical and rehabilitation fields. There is a lack of acceptable devices available to perform such measurements in the field in a reliable and nonintrusive way over a long period of time. The purpose of this study was therefore to develop such a wearable joint monitoring sensor capable of continuous day-to-day monitoring. Methods A novel technique of incorporating conductive fibers into flexible skin-tight fabrics surrounding a joint is developed. Resistance changes across these conductive fibers are measured and directly related to specific single or multi-axis joint angles through the use of a non-linear predictor after an initial one-time calibration. Because these sensors are intended for multiple uses an automated registration algorithm has been devised using a sensitivity template matched to an array of sensors spanning the joints of interest. In this way a sensor .