Ultrasonic Calibration of a Magnetic Tracker in a Virtual Reality Space

Created on March 01, 1995

1995   ·   paper   ·   papers   Applications   Devices   Software

Ultrasonic Calibration of a Magnetic Tracker in a Virtual Reality Space

Ghazisaedy, M.,Adamczyk, D.,Sandin, D.,Kenyon, R.,DeFanti, T.

image

This paper describes a system for calibrating the position component of a 6-degree-of-freedom magnetic tracker by comparing the output with a custom-built ultrasonic measuring system. A look-up table, created from the collected difference data, is used to interpolate for corrected values. The error of the resulting corrected magnetic tracker position is measured to be less than 5% over the calibrated range.

Citation: Ghazisaedy, M., Adamczyk, D., Sandin, D., Kenyon, R., DeFanti, T., Ultrasonic Calibration of a Magnetic Tracker in a Virtual Reality Space, Proceedings of the IEEE Virtual Reality Annual International Symposium (VRAIS ’95), Research Triangle Park, NC, 1995-03-01.