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Laser Displacement Sensor

  • Dynamic measurements of displacement up to 50 kHz
  • Static measurement of DC component and geometry
  • High accuracy
  • Different measurement ranges
  • Visible red type class 2 laser
  • Calibration by user possible
  • Measurement of the reflected light intensity
  • Good cost-performance ratio
  • Ideal for loudspeaker measurements

The Distortion Analyzer equipped with a laser displacement sensor becomes a powerful vibrometer providing dc and ac components of up to 50 kHz. The laser sensor gives access to the mechanical domain, simplifies the T/S parameter measurement and is the basis for the vibration and radiation analysis. Only a laser sensor based on the triangulation principle measures the dc component of the displacement reliably, which is a very valuable symptom for loudspeaker nonlinearities. This dc capability is also the basis for scanning the geometry of a radiator.
A variety of laser sensor heads is provided to get optimal performance in the particular application.
It is recommended to use coating spray for micro-speakers and tweeters with transparent and shiny diaphragms. More information.

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