A Haptic Compass for Navigation
From: IEEE - Computing Edge - June 2017 - page 6
By: Lynette A. Jones, MIT

In "Development and Experimental Validation of a Haptic Compass based on
Asymmetric Torque Stimuli," Jean-Philippe Choiniere and Clement Gosselin
describe the design, control, and experimental validation of a handheld
haptic compass for use as a navigation aid (IEEE Trans. Haptics, vol. 10, no.
1, 2017, pp. 29–39). The device comprises a direct drive motor that generates
open-loop torques around an axis orthogonal to the palm of the hand by
accelerating the internal masses (the motor's rotor and flywheel) in one
direction or the other. A haptic-signal feedback generator translates the
user's location and orientation relative to an environmental target to
determine the delivered torque’s direction and amplitude. For example, if the
user experiences a torque to the left, then the target is on the left; torque
amplitude provides information regarding the distance to the target.

Read the entire article at:
https://www.computer.org/csdl/mags/co/2017/06/mco2017060006.html

Link:
Development and Experimental Validation of a Haptic Compass based on
  Asymmetric Torque Stimuli
http://ieeexplore.ieee.org/document/7490346

Not related:
Human cooperative wheelchair for haptic interaction based on dual compliance control
http://ieeexplore.ieee.org/document/1265800