The Edge Sensor has specifically been developed for the measurement of mirror segments for large telescopes. In order to enable a highly precise positioning of the individual segments, the Edge Sensor detects quantities such as piston, gap and shear in nanometre resolution. The active temperature compensation reduces temperature-driven disturbances to a minimum. Due to its universal concept, the Edge Sensor can be applied in numerous fields of applications for the measurement of distance, displacement and position where high accuracies and resolutions are required.

Measuring ranges:

• Piston ±1400µm
• Gap 2000 - 700µm
• Shear ±1500 µm

Special features:

• Measurement of gap, displacement and tilt
• Highest resolution and accuracy
• Active temperature compensation