Origin Technologies Corporation

 

While the wide variety of laser line imaging methods provides flexibility on how scan data is obtained, the scans are meaningless unless useful measurements can be made from them. This is where the Virtual Gauges come into play. The LaserGauge┬« technology provides three different ways for users to configure measurements:

Standard Virtual Gauges
LaserGauge Technology Virtual GaugeThe Standard Virtual Gauges are used mostly in gap/flush and automotive sheet metal applications. Flexible configuration parameters allow the user to configure the Virtual Gauge so that it returns measurements consistent with the specified measurement methodology.

Match-to-CAD
LaserGauge Technology Match-To-CADThe Match-to-CAD (MTC) algorithm is a numerical method used to calculate measurements on inspected parts according to the original CAD design of those parts or assemblies. The advantages of MTC include:

  • Easier setup. More intuitive approach to configuration of measurements.
  • Traceable configurations, defined by engineers and originating from part drawings.
  • Nominal values are generated automatically from drawings, removing the subjectivity from specifying nominal values, providing a consistent methodology for nominal determination and tracking to actual part parametric data.
  • Used to some degree when the sensor scans are noisy. The Template matching is done with all scan data (on one side) simultaneously, thereby averaging any scatter superimposed in the scan.

LGBasic Programs
LaserGauge Technology LGBasic AlgorithmThe most versatile Virtual Gauge definition is through the use of LGBasic programs. An LGBasic program describes detail the procedural steps for extracting features and/or measurements from the profile sample, logging and displaying the data, and controlling external devices, either through digital I/O and/or serial I/O. Written using either a standard text editor or LGBasicStudio, the powerful LGBasic programs can identify the most complex features and extract measurements based on the most stringent requirements.