Laser Doppler Vibrometry

Laser Doppler vibrometry is an optical technique for the contact-less measurement of vibrations. Modern laser Doppler vibrometers are recording mechanical vibrations with highest precision. There is no other technology available which could come close regarding frequency bandwidth, sensitivity and resolution.

Measurement Principle

Doppler effect, interferometry and demodulation - From the laser beam to the vibrational parameters


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Laser source

Helium-Neon or infrared laser - Differences and scope

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Signal processing

From raw data to physical vibration information

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