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Robot Calibration


Robot Calibration is the method of identifying the relative position of joints in the robot. Robot calibration also involes cell calibration of tools, end effector, and all elements of the workcell.

ISO 9283 sets performance criteria for industrial robots and suggesting test procedures in order to obtain parameter values. The most commonly used criteria is accuracy of pose (AP) and repeatability of pose (RP).

The positioning accuracy of industrial robots varies by manufacturer, age, and robot type. The magnitude of the error between the actual position and the desired position can be as low as a tenth of a millimeter, or as high as several centimeters. Using kinematic calibration, these errors can be reduced to less than a millimeter in most cases.