Note: Before performing calibration, ensure that you are using the appropriate Exposure (by possibly using AutoExposure), and also an appropriate Graysum value set.

The following steps outline the procedure that would be used when you are first calibrating your laser probe:

1. Select the tip that you defined in Step 3 from the Active Tip List box from the Probe Utilities dialog box.

2. Click Measure from the Probe Utilities dialog box. This opens the "Measure Laser Probe" dialog box.

3. Select the Type of Calibration Operation:

- For Perceptron probes, select Offset.

- For Metris probes, select Tips.

4. Select other calibration options as needed: Motion type, Move Speed, Parameter Sets and Calibration Tool.

Note: If using a multi-sensor CMM, the sphere location for the laser calibration tool should first be found with a calibrated touch probe so that the laser probe measurement data will be correlated with the touch probe calibration.

5. Click Measure to begin the calibration procedure. Follow any on-screen instructions. The first several prompts that you see are identical to the setup procedure for touch trigger probes.

Note: If you are using MAN or MAN + DCC Motion or you answer Yes to the message “Has the sphere moved” you will need to manually bisect the qualification sphere. See "Manually Bisecting the Calibration Sphere". Once you do an Offset calibration, you will no longer be asked to bisect the sphere unless you answer yes to the message “Has the sphere moved”.

6. Once execution finishes, PC-DMIS returns to learn mode and shows the Probe Utilities dialog box.

7. Steps 8 through 13 are for Metris probes only. If you are calibrating a Perceptron probe, skip to step 14.

8. Select the tip that you have just calibrated from the Active Tip List box from the Probe Utilities dialog box.

9. Click Measure to begin sensor calibration.

Important: If your CMM is equipped with a jog box (pendant) that has a variable speed control, ensure that it is set to 100% at the start of the Sensor calibration and throughout the entire Sensor calibration procedure. Failure to do this will cause an inaccurate velocity map to be calculated.

10. Select the DCC Motion option and the Sensor option from the Measure Laser Probe dialog box.

11. Verify that the same Calibration Tool that was used for tip calibration is selected.

12. Click Measure. The sensor calibration procedure is much longer than Tip calibration and will take at least 5 minutes.

13. Once Sensor calibration finishes PC-DMIS shows the Probe Utilities dialog box.

14. If needed, click Add Angles to define any other tip angles that need to be calibrated.

15. Select any tips from the Active Tip List box from the Probe Utilities dialog box for which you would like to perform tip calibrations. The initial tip calibration only found offset information for the probe configuration.

16. Click Measure to begin tip calibration for all selected angles. If no angles are selected, you will be prompted to see if you want to calibrate all tips.

17. Select the Tips option from the Measure Laser Probe dialog box.

18. Verify that the same Calibration Tool that was used for tip calibration is selected.

19. Click Measure. PC-DMIS performs tip calibration and shows the Probe Utilities dialog box when it is finished.

Note: Offsets of each axis for Perceptron Sensors are saved in the registry as HotSpotErrorEstimateX, HotSpotErrorEstimateY, and HotSpotErrorEstimateZ

Note: The new velocity map for Metris Sensors will be saved in the same directory as the “Sensor files location” specified on the Laser tab of Setup Options dialog box.

Note: Once either Offsets or Sensor calibration has been performed, depending on probe type, only steps 14 through 19 need to be performed on any new probe file which utilize the same sensor and CMM.

The following steps outline the procedure that would be used when you are calibrating a portable laser CMS probe using a planar artifact:

1. Click Measure from the Probe Utilities dialog box. This opens the Measure Laser Probe dialog box. See "Measure Laser Probe Options".

2. Select the appropriate sensor mode. The default is Mode3.

3. Place the planar artifact in a convenient location for the arm to measure.

4. Click Measure to begin the calibration procedure. Follow any on-screen instructions.

Note: The calibration procedure will require 17 stripes to be acquired on the planar artifact. These stripes will be captured by the laser in different positions and orientations with respect to the planar artifact.

For each stripe to be acquired, the system will draw a yellow target line on the live view, to help you visualize where the acquisition needs to be taken.

The calibration process described in this step may vary depending on the laser probe options and the type of installed interface. Refer to the "Measure Laser Probe Options" topic for detailed information on calibration options.

The following steps outline the procedure that would be used when you are first calibrating your laser probe:

1. Select the tip that you defined in Step 3 from the Active Tip list from the Probe Utilities dialog box.

2. Click Measure from the Probe Utilities dialog box. This opens the Measure Laser Probe dialog box.

3. Select the appropriate sensor mode. The default is MODE3.

4. Select other calibration options as needed: Motion type, Move Speed, Parameter Sets and Calibration Tool.

Note: If using a multi-sensor CMM, the sphere location for the laser calibration tool should first be found with a calibrated touch probe so that the laser probe measurement data will be correlated with the touch probe calibration.

5. Click Measure to begin the calibration procedure. Follow any on-screen instructions. The first several prompts that you see are identical to the setup procedure for touch trigger probes.

Note: If you are using MAN or MAN + DCC motion or you answer Yes to the message “Has the sphere moved”, you will need to manually bisect the qualification sphere. See "Manually Bisecting the Calibration Sphere".

6. Once execution finishes, PC-DMIS returns to learn mode and shows the Probe Utilities dialog box.

7. If needed, click Add Angles to define any other tip angles that need to be calibrated.

8. Select any tips from the Active Tip list from the Probe Utilities dialog box for which you would like to perform tip calibrations. The initial tip calibration only found offset information for the probe configuration.

9. Click Measure to begin tip calibration for all selected angles. If no angles are selected, you will be prompted to see if you want to calibrate all tips.

10. Select the appropriate sensor mode. The default is MODE3.

11. Select the Tips option from the Measure Laser Probe dialog box.

12. Verify that the same calibration tool that was used for tip calibration is selected.

13. Click Measure. PC-DMIS performs tip calibration and shows the Probe Utilities dialog box when it is finished.

Current Help System: PC-DMIS Laser (View Core Help)

### Step 4: Calibrate the Laser Probe

The calibration process described in this step may vary depending on the "Measure Laser Probe Options" and the type of installed interface. Refer to the "Measure Laser Probe Options" topic for detailed information on calibration options.

Calibrating Perceptron or Metris Probes

Calibrating Portable CMS Laser Probes

Calibrating DCC CMS Laser Probes

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More:

Measure Laser Probe Options

Manually Bisecting the Calibration Sphere