+49 (0) 3677 64 47-0

Office: MoFri: 08:00 a.m.4:30 p.m. (CET)

further contact options



Vibrometer with fixed focal length

LSV 120 NG

Vibrometer with fixed focal length

High-precision, non-contact vibration and length measurement

easy adjustment and handling

compact device with case for mobile use

the measuring system with a fixed focal length

fixed working distance customized 30 ... 70 mm, 240 mm, 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

Many applications in industry and research require highly precise and informative vibration analysis on a wide variety of surfaces.
Non-contact vibration and length measurement on surfaces of any roughness and under industrial operating conditions can be realized very precisely and quickly with the LSV 120 NG vibrometer
The laser vibrometers from this series have integrated optics with a fixed working distance. The focusing lens is installed in the sensor head and is thus protected against damage and environmental influences. Therefore, this basic variant is preferred for OEM applications in industry. 
The surface of the moving object may have any roughness. Mechanical vibrations with amplitudes up to ± 20 mm can be measured in the range from 0 to 5 MHz with a resolution in the sub-nanometer range. Static measurements are also possible with this measurement system.
The design of the vibrometer is as compact as it is robust. Its housing is splash-proof and the optical fibers are supplied with protective jackets on request.

The laser interferometric vibration measurement system has extensive options for triggering measured value recordings, so that the entire measurement sequence can also be automated or remotely controlled.

Request advice

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

fixed installation and integration into customer superstructures

high-precision length measurements

Ideal for

quality control


science / research

OEM applications

Measuring principle of the laser vibrometer

You want to know
whether the vibrometer LSV 120 NG 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.

Contact now

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?

We will be happy to make you a suitable offer.

Fields marked with * are required for processing.

Angebot anfordern engl


By using our contact form, you agree to the processing and storage of your data.

Further information on data protection