What is the LaserTRACER?

For highest precision applications the LaserTRACER was developed in cooperation with the German Physikalisch-Technische Bundesanstalt (PTB) and the National Physical Laboratory (NPL) in the UK. It is a self tracking laser interferometer. The laserbeam follows automatically a reflector and it is possible to measure distances with highest accuracy almost in every direction.

 View movie (WMV: 2 MB)

What is so special of the LaserTRACER?

Compared to conventional devices the LaserTRACER has an unprecedented accuracy of the center of rotation due to a patented system: A sphere with a form deviation of just a couple of nanometers is used as reference for the interferometer. Therefore, the mechanical inaccuracies of the rotation axis are fully compensated.
Furthermore the LaserTRACER is considerable more compact than conventional devices.

Figure: (1) reference sphere, (2) measurement beam, (3) solid pillar

What is the purpose of the LaserTRACER?

The LaserTRACER is the ideal instrument for the calibration und testing of CMMs and machine tools with our software solutions TRAC-CAL and TRAC-CHECK.
 

The LaserTRACER in action on a machine tool

Instead of the tool or probe of the machine a reflector is mounted. The LaserTRACER can watch the actual path of the machine in the whole working volume.



View movie (WMV: 4.5MB)

Technical key data

• Measuring uncertainty for spatial displacement (k=2): 0.2 µm + 0.3 µm/m
• Resolution : 0.001 µm
• Measuring range: 15 m (any size by calculational interaction)

ETALON AG
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