Detection thresholds for small haptic effects.
Detection thresholds for small haptic effects. Inevitably a haptic device which meets the strict weight, power and volume requirements of a hand held device will be capable of only very small forces and displacements compared to existing desktop devices. This leads to two aspects to the question. FHD, a 2 DOF, low friction, direct drive, planar haptic display capable of high fidelity representation of virtual surfaces. Using a forced-choice experiment incorporating an adaptive threshold algorithm, we measured the weakest haptic effects that are detectable via the haptic interface.