Conference Paper

A Wearable Haptic Display to Present the Gravity Sensation - Preliminary Observations and Device Design.

DOI: 10.1109/WHC.2007.15 Conference: Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC 2007), 22-24 March 2007, Tsukuba, Japan
Source: DBLP

ABSTRACT We propose a wearable ungrounded haptic display that presents a realistic gravity sensation of a virtual object. We focused on the shearing stress on the fingerpads due to the weight of the object, and found that the deformation of the fingerpads can generate a reliable gravity sensation even when proprioceptive sensation on the wrist or arm is absent. This implies that an ungrounded gravity display can be realized by reproducing fingerpad deformation. Based on our observations, we conducted evaluation tests for the device design. We first implemented the prototype device, which has a simple structure comprising dual motors, and then evaluated the recognition ability of the gravity sensation presented on the operator's finger by this method.

  • [Show abstract] [Hide abstract]
    ABSTRACT: The fact that we can guess the properties of the contents in a box or a bottle by shaking it is interesting. If this experience can be realized virtually, it would be possible to use it as a means to transmit information from a portable information appliance to a user via haptic interaction. This paper describes an approach for implementing such a device; the development of a haptic device and control system as well as the modeling and simulation of a virtual box and its contents are presented in this paper. The prototype system was evaluated, and different model parameters were experimentally tested.
    Proceedings of the 2012 international conference on Haptics: perception, devices, mobility, and communication - Volume Part I; 06/2012
  • [Show abstract] [Hide abstract]
    ABSTRACT: We propose a wearable haptic display to present the weight sensation of a virtual object, which is based on our novel insight that the deformation on fingerpads makes a reliable weight sensation even when the proprioceptive sensation is absent. This device will provide a new form of ubiquitous haptic interaction.
  • [Show abstract] [Hide abstract]
    ABSTRACT: In recent times, there have been a number of computer user interface devices that have some haptic feedback functions, such as the DUALSHOCK controller [Sony Computer Entertainment, Inc. 1997] or the Wii Remote [Nintendo Co., Ltd. 2006]. However, their haptic feedback is limited to only the vibration function since there is no other method to provide haptic feedback that can be implemented with a small and inexpensive device. On the other hand, there is an increasing demand for realistic haptic feedback; thus, a simple and inexpensive method for a highly realistic haptic display is required. To meet this requirement, we propose a wearable haptic display to present the mass of a virtual object as shown in Figure 1. We focused on the mass of a virtual object, which contributes to the weight and the inertia mass in haptic interaction. If the virtual mass is presented by a haptic device, the user can perceive a more realistic sensation of the virtual object by grasping than the vibration feedback.