How Multisensor Measurement Works

Most OGP sensors gather data points in two ways – by acquiring single points, or by scanning multiple points. You're probably familiar with single point acquisition. For example, a traditional touch trigger probe approaches a surface, touches it and collects one data point, then backs off and goes to the next point to repeat the process.

But with OGP scanning technologies, you aren't limited to collecting single points. Many of our sensors scan.

An OGP scanning touch probe, for example, contacts a surface and maintains that contact as it moves across it, collecting data points along the way. Our lasers move a laser spot along a surface, collecting continuous data points to build a surface profile. OGP video systems collect multiple focus points within the optical field of view, and use them to develop a three-dimensional contour map of a surface. "Edge Trace" uses our SmartScope's edge detection capabilities and CNC stage control to scan a part perimeter automatically.

And OGP multisensor metrology systems are smart – they keep their sensors within their respective measurement ranges as the sensors scan varying contours and complex shapes.

• Acquiring single data points
  • Touch Trigger Probe
  • Feather Probe
• Acquiring multiple data points
  • Scanning touch probe
  • Laser
  • Video
    • Multiple focus points
    • Edge Trace
  • Rainbow Probe