Hello everyone,
It is possible to scan tens of points in a few seconds using a Doppler vibrometer. How does moving the laser beam between so many points in such a short time work?. Are Pockels/Kerr cells used, or is there another way?
Thank you
Dear Hrachya Kocharyan ,
Pockels and Kerr cells affect the polarisation state of the laser light, but not its direction.
The deflection of the laser beam is done via mirrors...
please see for example:
https://maul-theet.com/products/laser-vibrometrie/scanning-laser-vibrometer/
Hi Dr Hrachya Kocharyan . I hope the following link might help:
https://www.laserfocusworld.com/test-measurement/test-measurement/article/16548206/vibration-control-laser-doppler-vibrometry-brings-vibrational-dynamics-to-14th-century-mechanics
Also, I hope the following link could help: https://www.optomet.com/products/scanning-vibrometers/
See also the following link: https://forschungsinfrastruktur.bmbwf.gv.at/en/fi/laser-scanning-vibrometer-psv-500-hv_3974
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