Julight Product – Laser Vibrometers

Julight VSM series (VSM = Vibrometer Self-Mixing) Laser Vibrometers are compact and versatile instruments based on the combination of the innovative Self-Mixing Interferometry principle (SMI) with the traditional laser Doppler vibrometry, for non-contact vibration measurements with high sensitivity and flexible working distance.

The measurable vibrations range from few tens of pm, to tens of mm, for frequencies from DC up to 100kHz, or 10MHz (with the ultrasound extended bandwidth option).

Julight Laser Vibrometer are capable of measuring directly onto any type of diffusive surface, without the need to use retroreflective painting or stickers, up to several meters distance.

Working distance goes from 100mm to 5m for standard versions, and up to 100m with long-distance option, all based on laser safety class 1 infra-red measuring laser. The option of using visible or 780 nm IR lasers is available for measurements through water and underwater.