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Recent content by hugostensson

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    Self-mixing laser diode vibrometer.

    I found the schematic from a paper about measurements. The laser diode will send a laser beam against the moving object. When the beam hits the surface the backscattered light will be mixed up in the laser diode cavity and this will make that the signal going from the Photo diode will contain...
  2. H

    Self-mixing laser diode vibrometer.

    Here is a picture of the schematic.
  3. H

    Self-mixing laser diode vibrometer.

    Hello everyone! I'm new to this forum and I'm excited to be here!. I currently working on to make a self-mixing laser diode vibrometer to measure sound from a loudspeaker. I've a schematic over a setup but I have some questions about it. 1. Where should I make the output measurements from...