Basics of laser interferometry

Laser interferometers are precision measuring instruments for measurement and calibration of length, angle and straightness in wide measuring ranges with high resolution and certainty.

Applications

Laser interferometer of new generation

Laser interferometer for length measurements ranging from a nanometre up to a few metres Increasing demands on the accuracies of coordinate measuring machines, machine tools and positioning devices with movement ranges over several metres pose a challenge to measurement systems when it comes to their acceptance and calibration. In this context, new generation laser interferometers …

Laserinterferometric vibrometer – precise, non-contact, flexible

Laserinterferometric vibrometer, based on a Michelson interferometer Mechanically coupled sensors have traditionally been used to measure vibrations. However, the general, continuing trend toward miniaturization is placing entirely new demands on measuring systems that have to measure the motion of objects through a wide frequency range and down to sub-nanometer resolution. This is where laserinterferometric vibrometers …

Compact calibration interferometer up to 6 m

Calibration interferometers for measuring of straightness, angle and  position Two calibration interferometers were developed for measuring lengths up to 6 m especially for narrow spaces. The high-precision straightness measurement makes them also suitable for the alignment of machine components. Calibration interferometers are used, wherever highly accurate detection of rotational and translational guidance deviations of linear …