Abstract
This article is about vibration-damping robotic eating devices designed for use by people who have difficulty in eating due to hand tremors due to neuromuscular system disorder. The robotic eating device has two degrees of freedom (DoF). It contains an active controller structure to absorb vibrations in the y- and z-directions. In the handle part of the robotic eating device, there are two DC motors placed on the y- and z-axis, a three-axis IMU inertia sensor, an embedded system board, and a power unit. To absorb the vibration measured from the IMU sensor, the position control of the two motors to which the spoon is connected is provided by PID controllers. The part of the spoon (the pit surface) where the food is placed is tried to be kept constant. To test the vibration-damping performance of the control method, the dynamic model of the spoon along the eating kinematic trajectory was simulated in the SimMechanics environment using vibration data from ten tremor patients. The results show that the stabilization method can absorb the vibration in the hand of the person in the range of 84–99.409% and successfully provide the stabilization of the spoon tip. This damping rate is promising for providing a healthy diet for hand tremor patients.
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A synthesized eating kinematic trajectory dataset for patients can be transmitted if communication with the authors passes.
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Taşar, B., Tatar, A.B., Tanyıldızı, A.K. et al. FiMec tremor stabilization spoon: design and active stabilization control of two DoF robotic eating devices for hand tremor patients. Med Biol Eng Comput 61, 2757–2768 (2023). https://doi.org/10.1007/s11517-023-02886-z
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DOI: https://doi.org/10.1007/s11517-023-02886-z