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Nonlinear Compensation of a New Noncontact Joystick Using the Universal Joint Mechanism

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4 Author(s)
HongZhe Jin ; Pusan Nat. Univ., Busan ; Hao Lu ; SeungKeun Cho ; JangMyung Lee

This paper demonstrates a new noncontact electronic joystick using a single Hall sensor that detects a horizontal vector in the magnetic field. Furthermore, in this paper, the nonlinear characteristics between the output of the Hall sensor and the movement of the joystick bar are modeled and compensated to be linear. The dynamic horizontal vector of the magnetic flux is detected by the Hall sensor while a permanent magnet is rotated with the joystick bar, which has a 2-D detecting area. With the nonlinear modeling equations, the Hall sensor output became linear and accurate for the 2-D joystick movement. Through real experiments, it is shown that the single Hall sensor structure mechanism is superior to the dual sensor structure in sensing 2-D motion without offset.

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:12 ,  Issue: 5 )