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Abstract: Passivity Of a Class of Sampled-Data Systems: Application to Haptic Interfaces

Abstract: Passivity Of a Class of Sampled-Data Systems: Application to Haptic Interfaces

by J. Edward Colgate and Gerd Schenkel

Proceedings of the 1994 American Control Conference, Baltimore, MD, pp. 3236-40

© 1994 AIAA. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale, or to reuse any copyrighted component of this work in other works must be obtained from the American Institute of Aeronautics and Astronautics.

Abstract:

Passivity of systems comprising a continuous time plant and discrete time controller is considered. This topic is motivated by stability considerations arising in the control of robots and force-reflecting human interfaces ("haptic interfaces"). A necessary and sufficient condition for the passivity of a class of sampled-data systems is derived. An example - implementation of a "virtual wall" via a one degree-of-freedom haptic interface - is presented.

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