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Laser distance interferometer

We calibrate instruments such as laser distance interferometers based on HeNe lasers, for example those from Hewlett Packard / Agilent, Renishaw, and others.

Measurement range

0 – 20 m

Measurement uncertainty

Typical measurement uncertainty is less than 0.5 ppm.

Method for calibration

The individual components of the measurement system are calibrated separately:

  • Laser wavelength
  • Detector counting circuit
  • Air sensors for temperature and pressure, as well as material temperature sensors, are checked under standard conditions to determine an offset value for the sensors.
    Offsets in sensors cause a linear length error.

If the system is connected to its own PC, the PC must be delivered together with the equipment so that the complete system can be calibrated.

Traceability diagram

Contact information

Helge Karlsson

hka@justervesenet.no

Ofte stilte spørsmål om kalibrering

 

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