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

#### Measure Laser Probe Options

The options available from the Measure Laser Probe dialog box determine the procedure that will be executed for Laser Probe calibration.

Measure Laser Probe dialog box

Change the following options as needed or as directed in "Step 4: Calibrate the Laser Probe".

Motion

- Man - This will require that you manually position the arm in several different locations bisecting the calibration tool. This will vary depending on the sensor manufacturer. This is the only available Motion option for arm machines.

- DCC - DCC mode is used when the laser sensor has accurate offsets provided by the sensor manufacturer or if you have already run the calibrate “offset” routine. This will move the machine through a series of positions as recommended by the sensor manufacturer. You will not be required to position the probe manually for each tip that is calibrated.

- Man+DCC - This mode is similar to DCC except that you will be required to position the sensor over the sphere in order to begin the calibration sequence for each of the tips being calibrated. You will be prompted by the application to position the sphere at the beginning of the calibration process.

Type of Calibration Operation

Note: The options in this section are available depending on the Laser Probe. Tips works for all probes, Offset is only for Perceptron sensors, Sensor is used for Metris sensors and Continuous Wrist is used for a Perceptron Sensor on an arm machine (Romer).

- Tips - This option is used to do a standard calibration or all marked tips for your laser probe.

- Offset - This option is used to estimate the laser probe offset for Perceptron laser probe types. Offset calibrations are only needed so that the machine can be positioned correctly to calibrate tips. If this step were to be skipped then the sphere may be missed during tip calibration.

- Sensor - This option is used to recalibrate the CCD of the camera inside the sensor. This is used mostly with sensors that have moving parts like Metris.

- Continuous Wrist - This option is used for calibrating sensors on manual arm machines.

Calibrating Perceptron Probes for the First Time: First, calibrate a single tip using the Offset option. Second, calibrate the first tip angle and any other tip angles using the Tips option. See "Step 5: Calibrate the Laser Probe" from more details.

Calibrating Metris Probes for the First Time: First, calibrate a selected tip using the Tips option. Second, calibrate the same tip sensor using the Sensor option. Third, calibrate the first tip and any other tip angles that might be used with the Tips option again. See "Step 5: Calibrate the Laser Probe" from more details.

Operation Mode

The items that appear in this area vary depending on type of laser sensor.

- Move Speed [%] - Determines the percentage of the maximum machine speed that will be used during the qualification process.

- Number or Stripes per Quadrant - Each sensor requires a minimum number of stripes in every quadrant. However you are not limited to that number. You can specify more than the minimum if you prefer.

- Frequency - If your sensor allows control of the frequency, you can specify this here. This functionality is only useful for manual arm machines.

- Sphere Area [%] - You can indicate the percentage of the sphere you want to cover. The general recommendation is 70%

- Move Speed [%] - Percentage of the maximum machine speed that will be used during the qualification process.

- Sensor mode - As with the "Scan Modes (for CMS Sensors)" topic, this collection of option buttons appears only for CMS sensors. It lets you select a predefined sensor mode, each mode being comprised of a specific combination of sensor frequency, data density, and Field of View (FOV) width.

Parameter Sets

Allows you to create, save, and use saved sets for your Laser probe. This information is saved as part of the probe file and includes the settings for your Laser probe.

To create your own named parameter sets:

1. Modify any parameters on the Measure Laser Probe dialog box.

2. From the Parameter Sets area, type a name for the new parameter set in the Name box and click Save. PC-DMIS displays a message telling you that your new parameter set has been created. You can easily delete a saved parameter set by selecting it and clicking Delete.

Calibration Tool

Select the appropriate Calibration Tool. If this is your first time calibrating, you will need to first define the tool first by selecting Add Tool. For specific information on defining a qualification tool, see the "Defining Hardware" section in the main PC-DMIS help file.

Important: Make sure you use the spherical qualification tool provided with your laser probe when you calibrate it. The surface characteristics of this tool are designed for optimal scanning results. Using a tool made by another manufacture may produce inaccurate data.