MV-Cor Geometrical Correction

MV-Cor Geometrical Correction Tables

ORBIT/FR offers a unique service to increase the accuracy of positioning systems and subsystems (typical accuracy improvement is a factor of 2 or 3) by intMV-Cor Before & Afteregrating geometrical error correction techniques into new or existing systems. The MV-CorTM service is a cost-effective solution to enhance range performance without replacing the entire positioning system. This service ensures range performance enhancement with minimum range down-time and optimized cost.

The service includes:

  • System evaluation.
  • Development of the geometrical error correction data.
  • Integration and improved accuracy validation.
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ORBITFR-MV-Cor_FINAL.pdf645.63 KB

Benefits of MV-Cor

System Evaluation:

  • An initial system inspection ensures that the geometrical corrections are integrated into top-quality, fully optimized equipment, therefore improving the final results.

Development of the Geometrical Error Correction Data:

  • MV-Cor uses continuous feedback correction, the only method that compensates for both position commands/feedback and for the variable gain measured by the control filter.
  • The feedback sensor records the original hardware values, making the correction transparent to the end user.

Integration & Improved Accuracy Validation:

  • Minimal system down-time is ensured by quick MV-Cor integration and validation by ORBIT/FR engineers.

Common Sources of Error

  • Misalignment between different axes
  • Inaccurate gears, resulting in a discrepancy between the measured position and the actual position
  • Inconsistent screw-drive pitch in the design of the positioner’s gear unit
  • Bearing wobble
  • Imperfect leveling
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