Keywords
Citation
(2000), "Laser calibration", Industrial Robot, Vol. 27 No. 1. https://doi.org/10.1108/ir.2000.04927aad.008
Publisher
:Emerald Group Publishing Limited
Copyright © 2000, MCB UP Limited
Laser calibration
Laser calibration
Keywords: Robots, Lasers, Calibration
Applicant: Proteus Corp. (USA)Patent Number: WO9910136Publication date: 4 March 1999Title: Laser calibration of robotics system
The invention is a system and method for calibrating a robotics system. The invention measures the actual performance of the system when positioning objects at several calibration positions within an operational area. The invention then determines corrective factors based on the performance measurements. The robotics system uses the corrective factors to overcome positioning errors and operate in the field with extreme precision. The calibration system comprises a control system, a laser projection device, a plate, and a laser detection device. The robotics system positions the laser projection device to project a laser beam through a hole in the plate and on to a laser detection area on the laser detection device. The control system then directs the robot system to move the laser projection device to a plurality of calibration positions. The laser detection device detects the laser beam on the laser detection surface when the beam is projected through the hole, and detects that the beam is not on the laser detection surface when it is projected on to the plate. The laser detection device provides information indicating the presence or absence of the laser beam to the control system, which determines a corrective factor based on the calibration positions and the information provided from the detection device.
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