Quick Compensation

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Quick Compensation is a Vantage-only routine that adjusts parameters in the Vantage to improve its accuracy. Its purpose is to provide Angular Accuracy Results that are within your Vantage’s specifications for the current working range of the system, or lower than the Vantage’s Maximum Permissible Error (MPE) based on your Vantage’s specifications per the ISO 10360-10:2016 specification.

Quick Compensation can be performed prior to performing the Angular Accuracy Checks using the steps below. When running the Quick Compensation prior to performing the Angular Accuracy Checks, FARO recommends that you verify the Quick Compensation results with an Angular Accuracy Check.

Quick Compensation is the preferred compensation for most applications, however Pointing Compensation from the Advanced tab of CompIT can yield lower backsight error or improved Angular Accuracy results, especially at longer distances, or when the full range of the system is required. Therefore, for measurement applications that require the highest possible accuracy and when measuring at long distances, Pointing Compensation can produce an improvement in overall measurement accuracy.

The Quick Compensation requires a 1½” Spherically Mounted Retroreflector (SMR) and a stable nest to place hold the SMR. You can use either the Calibration Tripod or heavy duty nests attached to your part. Several measurements are taken to ensure movement, vibration, etc does not affect the compensation, therefore if the nest or environment is not stable during the duration of the measurement, the Quick Compensation may not be able to finish.

  1. In the CompIT dialog box, click Quick Compensation. This step is not necessary if you chose to continue onto the Quick Compensation directly from the results of the Angular Accuracy Checks.

  2. CompIT begins the Quick Compensation routine. This routine requires tracking the SMR to one location. The routine takes approximately five minutes to complete.

  3. Place the SMR in the Home position and wait until the measurement of the SMR is complete.

    Figure 11-13 Quick Compensation - Home

  4. Track the SMR to any location.

    Figure 11-14 Quick Compensation - Track to Any Point

    • CompIT automatically checks for stability of the SMR at the location.

    Figure 11-15 Quick Compensation - Checking Stability

    • Once stable, CompIT automatically measures the location in both frontsight and backsight modes.

    Figure 11-16 Quick Compensation - Measuring

  5. After the routine is completed, you will see the results in the Quick Compensation Results dialog box with a recommendation.

    • If Quick Compensation was run directly from the CompIT dialog box, click Update to update the Vantage compensation parameters.

      Figure 11-17 Quick Compensation - Passing Results

    • If Quick Compensation was run directly from an Angular Accuracy Checks that did not have a passing results, the previous Angular Accuracy Checks measurements will be used to verify that the Quick Compensation has improved the Vantage’s angular accuracy and it is now within its specifications. If these new results are not within the Vantage’s accuracy specifications, CompIT will recommend that you press CONTINUE to perform a Pointing Interim Test and Pointing Compensation. See Pointing Compensation.

      Figure 11-18 Quick Compensation - Passing Results

    • Click Done to exit the Quick Compensation routine without making any updates.

      The Vantage’s compensation will not be changed. Click Update to use the previous measurements to improve the Vantage’s accuracy.

    • Click Details to see detailed results.

    Figure 11-19 Synopsis tab

    • Click Report to save the results to a text file.

      If Quick Compensation was run directly from an Angular Accuracy Checks that did not have a passing results, an ANGULAR ACCURACY CHECK DEVIATIONS appears. Click this tab to view the new backsight results of the previously measured points. Also view the measurement location, the error, the tolerance (MPE) and if the measurement is In Tolerance or Out of Tolerance. Click the Quick Compensation tab to view the Before, After and Change in system parameters. Quick Compensation adjusts the two rotational (RX and RY) and two translational (CTX and CTY) parameters. While these parameters are displayed and able to be saved for archival purposes, the values or the change do not indicate the current angular accuracy or backsight error of the Vantage. The Angular Accuracy Checks or Backsight results is used to evaluate the accuracy of the Vantage, not these parameters.

    Figure 11-20 Quick Compensation Results tab

    • After the routine is completed, you will see the results in the Quick Compensation Results dialog box with a recommendation.

      • If Quick Compensation was run directly from the CompIT dialog box, click Update to update the Vantage compensation parameters.

        Figure 11-21 Quick Compensation - Passing Results

      • If Quick Compensation was run directly from an Angular Accuracy Checks that did not have a passing results, the previous Angular Accuracy Checks measurements will be used to verify that the Quick Compensation has improved the Vantage’s angular accuracy and it is now within its specifications. If these new results are not within the Vantage’s accuracy specifications, CompIT will recommend that you press CONTINUE to perform a Pointing Interim Test and Pointing Compensation. See Pointing Compensation.

        Figure 11-22 Quick Compensation - Passing Results

      • Click Done to exit the Quick Compensation routine without making any updates.

        The Vantage’s compensation will not be changed. Click Update to use the previous measurements to improve the Vantage’s accuracy.

      • Click Details to see detailed results.

      Figure 11-23 Synopsis tab

      • Click Report to save the results to a text file.

        If Quick Compensation was run directly from an Angular Accuracy Checks that did not have a passing results, an ANGULAR ACCURACY CHECK DEVIATIONS appears. Click this tab to view the new backsight results of the previously measured points. Also view the measurement location, the error, the tolerance (MPE) and if the measurement is In Tolerance or Out of Tolerance. Click the Quick Compensation tab to view the Before, After and Change in system parameters. Quick Compensation adjusts the two rotational (RX and RY) and two translational (CTX and CTY) parameters. While these parameters are displayed and able to be saved for archival purposes, the values or the change do not indicate the current angular accuracy or backsight error of the Vantage. The Angular Accuracy Checks or Backsight results is used to evaluate the accuracy of the Vantage, not these parameters.

      Figure 11-24 Quick Compensation Results tab