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Adaptive Robot Control - Introducing absolute robot positioning accuracy

nikon metrology adaptive robot control optical cmm main

Adaptive Robot Control activates a closed metrology-driven feedback loop that firmly increases the precision of industrial robots. Regardless whether robots are deployed for machining, inspection, applying beads or manipulating objects, robot tasks are consequently executed with 0.1mm absolute accuracy, irrespective of degrading phenomena like play, mechanical flexibility, backlash or thermal effects.

Key benefits

  • Independent metrology chain for industrial robot applications
  • Providing high level of absolute robot accuracy
  • Investment is only a fraction of new product equipment with comparable accuracy


  • Controlling the robot to higher accuracies than available with a robot’s own coordinate system and construction
  • Robot drilling for riveting holes
  • Accurate positioning of concurrently operating robots
Benefits & features

Accuracy down to 0.1mm in the entire working volume of the robot

By continuously tracking robot positioning and using a closed feedback loop to return the acquired metrology data to the robots, Nikon Metrology is able to reach absolute robot accuracy of 0.1 micron. As this approach bypasses the effects of robot warm-up, drift and backlash, it transforms industrial robots into highly accurate and efficient in-line manufacturing stations.

Simultaneous measurement of up to 1024 points

nikon metrology adaptive robot control iGPSiGPS or an Optical CMM? The number of measurements both metrology systems can perform simultaneously is more than sufficient to track and adjust robot motion. With iGPS there are no limitations as to the number of simultaneous measurements, Optical CMM is limited to 1024.

Tracking sample rate up to 1000Hz

A K-Series Optical CMM tracks robot motion at a sample rate of up to 1000Hz. With iGPS, this is lower.

Tracking volume of 17m3 (expandable)

The metrology system can either be a K-Series Optical CMM or an iGPS system. In the first case a tracking volume of 17m3 is offered, which can be expanded by adding additional Optical CMM units. When using iGPS, the tracking volume is much larger, and also expandable.

Dynamic tracking and closed feedback loop to robot controller

nikon metrology adaptive robot control optical cmm 2The metrology system makes the robot aware of deflections by measuring the relative positions of the target and the robot as it moves towards it. The robot is able to coordinate that data on-line and make the necessary compensations instantaneously.

Adaptive Robot Control
Adaptive Robot Control


Industrial applications


Adaptive Robot Control
Adaptive Robot Control