One-Dimensional Haptic Rendering Using Audio Speaker with Displacement Determined by Inductance
نویسندگان
چکیده
We report overall design considerations and preliminary results for a new haptic rendering device based on an audio loudspeaker. Our application models tissue properties during microsurgery. For example, the device could respond to the tip of a tool by simulating a particular tissue, displaying a desired compressibility and viscosity, giving way as the tissue is disrupted, or exhibiting independent motion, such as that caused by pulsations in blood pressure. Although limited to one degree of freedom and with a relatively small range of displacement compared to other available haptic rendering devices, our design exhibits high bandwidth, low friction, low hysteresis, and low mass. These features are consistent with modeling interactions with delicate tissues during microsurgery. In addition, our haptic rendering device is designed to be simple and inexpensive to manufacture, in part through an innovative method of measuring displacement by existing variations in the speaker’s inductance as the voice coil moves over the permanent magnet. Low latency and jitter are achieved by running the real-time simulation models on a dedicated microprocessor, while maintaining bidirectional communication with a standard laptop computer for user controls and data logging.
منابع مشابه
The Hand-Held Force Magnifier & One-Dimensional Haptic Rendering Using an Audio Speaker
The following work deals with the haptic problem, which resulting from the loss of tactile sense during delicate microsurgeries. One of the developments that solve this problem is the Hand-Held Force Magnifier (HHFM). The research presents a conceptual design of a quick change of tools to the HHFM third prototype and a development of a new prototype, the HHFM-4. The fourth HHFM prototype will r...
متن کاملA smooth approximation of mobile platform displacement for Mobile Haptic Interfaces
One of most interesting aspects in haptic research deals with the extension of application workspace, thus allowing haptic simulation within large virtual environments. Several devices have been realized that allow this kind of interaction, in particular our interest focuses on mobile haptic interfaces, realized by combining classic grounded haptic devices with mobile platforms. While grounded ...
متن کاملDesign and Evaluation of Multimodal System for the Non-visual Exploration of Digital Pictures
This paper reports on the design and the evaluation of an audio-haptic tool that enables blind computer users to explore digital pictures using the hearing and feeling modalities. The tool is divided in two entities: a description tool and an exploration tool. The description tool allows moderators (sighted persons) to describe a scene. Firstly, the scene is manually segmented into a set of obj...
متن کاملAn Audio-haptic Tool for Non-visual Image Repiresentation
This paper reports on the design of an audio-haptic tool that enables blind computer users to explore a picture by the hearing and feeling modalities. The tool is divided in two entities: a description tool and an exploration tool. The description tool allows moderators (sighted person) to describe a scene. Therefore, the scene is firstly segmented manually or automatically into a set of object...
متن کاملA Movement Based Method for Haptic Interaction
An abundance of haptic rendering schemes have been developed to help further presence and immersion in virtual environments. Increasing realism is the main driving force behind this development. Schemes have progressed from simple one-dimensional springs to six degree of freedom particle models, with a wealth of surface and material properties. Because of their relative unimportance, haptic ren...
متن کامل