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Vibrometer with exchangeable lens attachment

LSV 120 NG/L

Vibrometer with exchangeable lens attachment

high-resolution vibration measurements and length measurements

frequency range from 0 Hz to 5 MHz

easy adjustment and handling

compact and robust design

the measuring system with interchangeable selectable focal lengths

lens accessible from the outside, quick-change mechanism without tools

changeable working distance from the sensor head 30...70, 240, 480 mm

laser spot diameter 12...30 µm, 100 µm, 200 µm

FFT software for spectral analysis

extensive trigger options

open interfaces for OEM software under Windows and Linux

The use of an exchangeable lens attachment in combination with focusing lenses of different focal lengths makes this version of the LSV 120 NG vibrometer a universal vibration measurement system, especially for the fields of product development and research. 
The LSV 120 NG/L laser vibrometer is suitable for precise and non-contact vibration measurement on almost all surfaces, determination of vibration spectra, determination of vibration modes and natural frequencies on macro and micro objects.
Fast setup, uncomplicated adjustment and a robust design are particularly important. Even the exchange of focusing lenses of different focal lengths can be done quickly and without tools. 

Various digital and analog modules are available for evaluating the measurement data and outputting the measured values. This allows the vibration measurement system to be adapted to your specific tasks and individual requirements.
For digital frequency analysis the corresponding FFT analysis software is offered. With the help of a tripod with three-way tilt head, the sensor can be positioned very quickly and aligned comfortably. A reflector is not required for non-contact vibration analysis. Both the vibrometer and the optionally available tripod can be supplied in robust and air-freight suitable transport cases.

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Technical data

05 MHz

max. 3 m/s

5 pm

Areas of application

non-contact vibration measurement on surfaces of any roughness

determination of vibration spectra

determination of vibration modes by point scanning of the surface (hardware extension necessary)

determination of natural frequencies on microobjects and macroscopic components

multi-coordinate measurements with multiple systems

high-precision length measurements

use of different focal lengths for changing tasks

Ideal for

quality control 


science / research

OEM application

Measuring principle of the laser vibrometer

You want to know
whether the Vibrometer – LSV 120 NG/L is the right solution for your measurement tasks?

Our SIOS experts will be happy to visit you on site. Together we can find a quick solution for your application and carry out the first test measurements in your environment.

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Related software


Software for vibration measurement

FFT analysis

Data filtering

Spectra averaging

Script control


Software for data acquisition and visualization

Universal software for all SIOS interferometers

Basic functions for data acquisition

Synchronization settings



Software library for customer software

Support and programming examples for all common programming languages

Your contact

Falko Seyfferth

Application Engineer

+49 (0) 3677 64 47-49

Are you interested in the LSV 120 NG/L?

We will be happy to make you a suitable offer.

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