This parameter controls the exposure of the sensor. The default value of 150 works well for most parts, but for parts that absorb a lot of light (such as a black anodized surface), you may need to increase the value. If you're using a sensor that supports the Gray Sum pixel locator type, PC-DMIS sets the exposure value to a material-specific value when you choose a material type from the Material list on the Laser Pixel CG Locator Properties tab of the Probe Toolbox.
The following table shows the available minimum and maximum exposure values for the supported Perceptron probes:
|
Perceptron Laser Probes |
||
Normalized Exposure |
V4i (Portable) |
V4ix (DCC) |
V5 |
Minimum Value: |
32 |
1 |
1 |
Maximum Value: |
627 |
627 |
1716 |
Default Value: |
150 |
150 |
|
If you set this to an inappropriate value, it may result in less-accurate measurements.
For Perceptron sensors, you can use the Toggle AutoExposure button on the Laser tab to calculate the best exposure value for you. In addition, if you set the AutoExposeWithLiveView registry entry to TRUE, PC-DMIS automatically sets the exposure value in the Probe Toolbox to the best value every time you start the Laser View.