Proximity triggers can also be used with a laser line scanner. Both Portable CMM arm scanners and tracker-linked scanners (such as Leica's T-Scan, LAS and AS1) can be used with proximity triggers. The basic idea is that you can simply scan the part to accurate data at specific locations.
Enabling the option is different depending on the instrument being used. Leica trackers automatically detect the Scanner when the scanner is detected and no additional settings are necessary. The Proximity Settings found in the properties of a CMM arm are shown below. Use this check box to enable or disable the scanner for this purpose.
With the Use Scanner for Auto-Proximity Measurements option enabled an operator can start the proximity triggers process and begin to scan. The cloud points will only be record when they are within the tolerance zone defined by the proximity trigger process.