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Long-Range Laser Interferometer

SP 15000 NG

Laser interferometric measurment system for high-precision length measurements over long distances

flexible length measuring system of highest accuracy

highly accurate length measurements over long distances

easy adjustment and handling

measuring ranges up to 80 m can be realized

compact design

extensive trigger options

open interfaces for OEM software under Windows and Linux

The SP 15000 NG long range laser interferometer was specially designed for length measurements over long distances and builds consistently on the SP 5000 NG product family. The sensor head has additional optics that optimally adapt the laser beam to large measuring lengths. Large coordinate measuring machines and machine tools, long linear axes and calibration distances represent the main applications of this precision linear encoder.  During the measuring process, the temperature distribution in the room or at the measuring location plays a decisive role with regard to the correctness of the measuring result. For this reason, we recommend combining the interferometer with our LCS precision climatic measuring station for high-precision applications.

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Technical data

≤ 80 m

0.1 µm/m

Areas of application

laser interferometric precision length measuring system for measuring, microscope and positioning stages, measuring and machine tools, hardness and material testing equipment as built-in measuring or calibration device

multi-coordinate measurements, e.g. on plane tables

calibration of linear encoders

Read application example

Ideal for


quality control

volumetric compensation


OEM applications

Measuring principle of the interferometric measurment system


Hollow reflector Ø 46 mm

screw-in type and

with magnets

item number A038752

Environmental Correction

sensor box SB-22

temperature transducer TT-01 for air or material temperature sensor

air humidity sensor

Adjustment table

lifting height 80 mm – max. 150 mm/ x-axial ±12.5 mm

item number A032051

You want to know
whether the laser interferometer – SP 15000 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 data acquisition and visualization

Universal software for all SIOS interferometers

Basic functions for data acquisition

Synchronization settings


Software for vibration measurement

FFT analysis

Data filtering

Spectra averaging

Script control


Calibration software according to VDI / ISO standard

for calibration of linear axes

Acquisition of position, pitch and yaw angles and straightness


Software for the acquisition of individual measuring points

integration of measurement data into existing customer software

simple interfaces


Calibration and volumetric compensation software

Calibration, error analysis and verification

Application for linear axes, CMMs and machine tools



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 SP 15000 NG?

We will be happy to make you a suitable offer.

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