5 February 2002 Detection thresholds for small haptic effects
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Proceedings Volume 4570, Telemanipulator and Telepresence Technologies VIII; (2002) https://doi.org/10.1117/12.454745
Event: Intelligent Systems and Advanced Manufacturing, 2001, Boston, MA, United States
Abstract
We are interested in finding out whether or not haptic interfaces will be useful in portable and hand held devices. Such systems will have severe constraints on force output. Our first step is to investigate the lower limits at which haptic effects can be perceived. In this paper we report on experiments studying the effects of varying the amplitude, size, shape, and pulse-duration of a haptic feature. Using a specific haptic device we measure the smallest detectable haptics effects, with active exploration of saw-tooth shaped icons sized 3, 4 and 5 mm, a sine-shaped icon 5 mm wide, and static pulses 50, 100, and 150 ms in width. Smooth shaped icons resulted in a detection threshold of approximately 55 mN, almost twice that of saw-tooth shaped icons which had a threshold of 31 mN.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jesse A. Dosher, Blake Hannaford, "Detection thresholds for small haptic effects", Proc. SPIE 4570, Telemanipulator and Telepresence Technologies VIII, (5 February 2002); doi: 10.1117/12.454745; https://doi.org/10.1117/12.454745
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