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

### Laser Probe Toolbox: Laser Scan Properties tab

Probe Toolbox - Laser Scan Properties tab

The Laser Scan Properties tab defines how data from the scan will be acquired and whether or not scan lines and feature visualizations be displayed in the Graphics Display window.

- Show/Hide Stripes - This toggles the display of the laser stripes on the part model. Clicking this button causes the laser scan stripes to be displayed in real-time. PC-DMIS limits how the stripes are displayed in the Graphics Display window to the distance of the feature nominal plus the Overscan value. The Overscan value controls how much of the stripe is clipped and visible to the user. The graphic below gives and example of how these stripes are displayed.

Scan Features showing stripes

- Sound ON/OFF - This turns the sound on or off. See "Using Sound Events".

- Visualization Tools ON/OFF - This toggles the display of the colored visualization tools. See "Understanding the Visualization Tools" for more information.

- Show/Hide Segregated Points - This toggles the display of those points that will be passed to the feature extractor engine based on the current settings.

  Showing segregated points inside a sample Flush and Gap feature

- Initialize Probe - This button starts or initializes the laser. You can't do anything with the laser until it is initialized. This takes about 15 seconds. (This button appears on this tab for portable configurations.)

- Projector: This is only available for V5 Perceptron probes on manual arms. Clicking this button turns on a projected grid of red light that will shine on the part. This acts like the cross hairs on a target. As you move your probe toward or away from your part, your probe's laser scan line moves through this target. For optimal results, your laser's scan line should line up with the center line of this target. This essentially serves the same purpose as the scan line indicator, helping you to keep the probe at the optimal height when measuring the part. Since this only functions in manual applications, this icon is disabled if using the Probe Toolbox within the Auto Feature dialog box.

  This actual picture of the Projector shows the rectangular grid-like projection of light. The brighter horizontal line is the laser's scan line.

- AutoZoom ON/OFF - This turns the laser AutoZoom functionality on or off. Whenever you start the scan, AutoZoom dynamically pans, zooms, rotates, and sizes the view containing the laser data in the Graphics Display window to show the incoming data.

Laser Scan Properties for a Leica T-Scan

For a portable Leica T-Scan probe, the Laser Scan Properties tab would contain these options:

Probe Toolbox - Laser Scan Properties tab for Leica T-Scan

- Point to point distance - This specifies the distance between two consecutive points in a scanline. Allowed values are between 0.035 mm and 10mm when using the up and down arrows.

- Line to line distance - This specifies the distance between two consecutive scan lines. Allowed values are between 0 mm and 50mm when using the up and down arrows.

- Use Angle of incidence - This specifies which maximum allowed angle will be used for scanning. This value helps avoid bad conditions while scanning (surface reflections, geometry, and so on). This angle is the angle between a ray and the surface normal vector. Allowed values are between 0 and 80 degrees when using the up and down arrows. If your mark the check box to the left of the box, PC-DMIS will send the angle value in the field. If you clear the check box, PC-DMIS will send a 90 degree angle to the dispatch interface. Typing a value of 90 degrees is the same as clearing the check box.

- Initialize Scanner - This icon starts the T-Collect software and initializes the scanner using the values defined in this tab.

- Apply - This button applies the values defined in this tab without stopping the scanner.

Note: While can override the limitations from the up and down arrows by typing any value directly into any of the above boxes, invalid values will be rejected by your machine and forced to a valid number.

Other Properties

Other possible properties for this tab are:

- Sensor Frequency

- Row Overlap

- Overscan

- Exposure

- Point Cloud

- Gain (for CMS Sensors)

- Scan Zoom Modes (for CMS Sensors)