Title :
Inertial sensing in a hand held dynamometer
Author :
Veltink, Peter H. ; Nieuwland, Daniel M. ; Harlaar, Jaap ; Baten, Chris T M
Author_Institution :
Twente Univ., Enschede, Netherlands
fDate :
31 Oct-3 Nov 1996
Abstract :
Two methods for kinematic sensing in a hand-held dynamometer using accelerometers and gyroscopes are presented. The first method integrates the angular velocity signal from the gyroscope, after calibration of gyroscope offset and joint angle from a static period immediately preceding each measurement. The second method estimates tangential and radial accelerations, enabling the estimation of the gravity components in the accelerometer signals under dynamic conditions, and thus angle reconstruction. The second method appeared to perform best in preliminary tests
Keywords :
accelerometers; angular measurement; angular velocity measurement; biomechanics; biomedical equipment; biomedical measurement; calibration; dynamometers; goniometers; gyroscopes; muscle; accelerometers; angle reconstruction; angular velocity signal; calibration; dynamic conditions; flexible goniometer; force transducer; gait assessment; gravity components estimation; gyroscope offset; gyroscopes; hand-held dynamometer; human movement analysis; inertial sensing; joint angle; kinematic sensing; muscle function; radial accelerations; rehabilitation medicine; segment angle; static period; tangential accelerations; therapy practice; Acceleration; Accelerometers; Angular velocity; Calibration; Gravity; Gyroscopes; Kinematics; Performance evaluation; Testing; Velocity measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651836
