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This paper presents an energy bounding approach (EBA) to enhance directional transparency while guaranteeing stability for multiple degree-of-freedom (DOF) haptic interaction. It was observed that the passivity condition for multiple ports may lead to some oscillations in some coordinate directions even though total energy is positive. The passivity condition, therefore, needs to be applied to each...
Humans significantly vary the impedance of their limbs during many manipulation tasks and during interaction with their environment. Humans vary their impedance to reduce contact forces, to increase positional control, and to stabilize unstable dynamics. The neuromuscular system modulates overall limb impedance by strategically selecting appropriate limb configurations and by selective activation...
This demonstration shows the effectiveness of the energy-bounding algorithm (EBA) for stable haptic interaction and bilateral teleoperation. The EBA proposed for stable haptic interaction based on the passivity theory and extended to stabilize the bilateral teleoperation system that has the time delay in communication channel. In this demo, a virtual wall test for haptic interaction and bilateral...
Among the methods to grant the stability of a telemanipulation system, the bilateral time domain passivity framework has the appealing characteristic to consider both, force and velocity signals exchanged between master and slave systems, and the power introduced or dissipated by the elements that compose the telemanipulation system. In previous works, it has been shown how the bilateral passivity...
This paper demonstrates fast, accurate, and stable force control in three axes simultaneously when a flat surface is pressed against the human fingerpad. The primary application of this force control is for the automated calibration of a fingernail imaging system, where video images of the human fingernail are used to predict the normal and shear forces that occur when the fingerpad is pressed against...
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