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Gyroscope-free inertial measurement units have been gaining popularity in applications such as motion sensing of handheld microsurgical instruments. Various accelerometer placement configurations have been proposed in the past. However, the effect of nonidentical transfer functions of accelerometers on the accuracy of angular motion sensing has been underestimated and never been taken into consideration...
Previously a Kalman filter has been developed to estimate joint angle of the tremulous upper limb using data from accelerometer (ACC) and surface electromyography (sEMG). Results have shown that the fused information can be useful for actively compensating the tremor and helping the clinicians in tremor diagnostics. In this paper, an improvement for the current algorithm is proposed by implementing...
Inertial sensors, like accelerometers and gyroscopes, are rarely used by themselves to measure displacement. Accuracy of inertial sensors is greatly handicapped by the notorious integration drift, which arises due to numerical integration of the sensors zero bias error. A solution is proposed in this paper to provide drift free estimation of displacement from inertial sensors.
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