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Recent findings have shown that humans can adapt their internal control model to account for the changing dynamics of systems they manipulate. In this paper, we explore the effects of magnitude and phase cues on human motor adaptation. In our experiments, participants excite virtual second-order systems at resonance via a two-degree of freedom haptic interface, with visual and visual plus haptic feedback...
Haptic augmented reality allows a user to feel the sensation of a real object augmented with synthetic haptic stimuli created by a haptic interface. For example, the user feels a soft sponge as if it is a stiffer rubber. This demonstration presents a haptic augmented reality framework in which the stiffness of a real object is modulated with additional virtual haptic feedback. A haptic interface is...
This paper presents the design and characteristics of a five-fingered haptic interface robot: HIRO III. The aim of the paper is to provide a high-precision force representation at the five human fingertips. HIRO III consists of a 15-degree-of-freedom (DOF) haptic hand, a 6 DOF interface arm and a control system. The haptic interface, which consists of a robot arm and hand, can be used in a large workspace...
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 paper describes development of a haptic interface using a laser range finder. The system consists of a laser range finder, a 1 degree-of-freedom haptic apparatus and a computer. The haptic apparatus can generate a reaction force based on a distance to a remote object that is measured by the laser range finder. A user can feel the shape of a remote object by holding this interface and pointing...
This research explores a new approach to shape the magnetic flux path in a MR brake. Magnetically conductive and non-conductive elements were stacked to weave the magnetic flux through the rotor and the outer shell of the brake. This approach enabled design of a more compact and powerful MR brake. In addition, a ferro-fluidic sealing technique was developed to prevent the fluid from leaking and to...
This paper describes development of a wind display system for the TreadPort virtual environment locomotion interface, which is cumulatively known as the TreadPort active wind tunnel (TPAWT). Computational fluid dynamic simulations and experiments with a scaled model test-bed of the system has resulted in a combination of passive and active controls capable of controlling wind speed and angle acting...
In the current world, by and large, computer interaction relies on visual and auditory feedback and to make interactions more realistic, tactile response would be essential e.g. for medical training simulations. Haptic interfaces would make the digital models to be probed and felt by the users and more specifically in a medical world by medical students, these simulations, also can reduce costs and...
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