Analytical Modelling of Magnetic Multimedia Control Elements Based on a Single Magnetic Sensor

Abstract

Magnetic multimedia control elements have many advantages in comparison with other systems based on mechanical, electrical, or optical readout. For system layouting, the practicality of analytical models over extensive numerical simulation was demonstrated in the past. In this work, we apply the analytical approach to design magnetic multimedia control elements. Particularly, we focus on a joystick that includes only a single 3D magnetic sensor and can be used in continuous operating mode. Presented results relate to a system based on a single permanent magnet and a single 3D sensor. The scheme was used to build a prototype to perform prove of principle experiments. A semi-analytic method to determine positions of the joystick from the observed magnetic field is discussed.

Energy Savings by Optimization of Thrusters Allocation during Complex Ship Manoeuvres

“…This way the control of the vessel was shifted from individual thruster manual levers to the joystick station consisting of one lever capable to tilt up to 36 The Apem joystick used in the simulation scenario is modern industrial Hall effect sensor of highly linear output voltage from 0 to 5 V between minimum and maximum lever's and knob's shift. Studies performed by Ermakova and others [34,35] proved that magnetic maps of such sensors can be rescaled to output very precisely. Performing designed scenario navigators became easily accustomed to the joystick with no evident preference for classic control.…”