Our instruments for Laser Doppler Velocimetry (LDV) / Laser Doppler Anemometrie (LDA)

Our partner for LDV equipment technology is the company ILA R&D GmbH. Together, we work in a close cooperation. For Switzerland, Austria and Liechtenstein we are your exclusive contact.

LDV systems

Our LDV probes differ in used light sources, possible working distances (from 10 mm up to 800 mm), shift or unshift (detecting of the sense of direction) and the number of simultaneously measured velocity components.

1D LDV probe fp40

Small, compact and unshifted system with laser diode (also with a modul for forward scattering).

Data sheet 1

Data sheet 2

1D LDV probe fp50 shift

The possible light sources for the fp50 probe (without and with detecting of the sense of direction) are Nd:YAG laser or HeNe laser.

Data sheet

2D LDV probe fp50 shift

Two Nd:YAG laser with different wavelengths are used for the shifted 2D LDV system with the detection of the sense of direction.

Data sheet

LDV profile sensor (1D and 2D)

The profile sensor uses two Nd:YAG lasers and enable a highly precise local resolution of velocity measurements up to 1% of the measurement volume (e.g. 10 μm).

Measuring principle

Data sheet

Example of Application

2D-LDV long range optics

The 2D-LDV long range system allows large working distances with a nevertheless small measuring volume size.

Data sheet

Software for LDV applications

In context of LDV measurements there are various software for different purposes. The main topics are using the controlling of the LDV system, raytracing calculations and specific evalutations of the measured data.

LDV signal processing

The new, user-friendly hardware and software for LDV signal processing.

Data sheet

LDV flow suite

A Software for data evaluation and calculation of performance indicators.

Raytracing software

A software for calculation of the ray tracing of the laser beams for using traversing systems, e. g. for measurements in pipes.

LDV specific accessoires and services

LDV velocity standard for on-site tests

A small compact device for testing plausibility of your LDV measurements on-site.

Data sheet

Mechanical laser shutter system (Interlock)

A device for laser safety for working in front of the laser probes without switching the laser off.

Data sheet

Calibration and traceability

The LDV systems can be traceable and calibrated at the turntable of PTB Braunschweig or at the factory standard of ILA R&D GmbH.

Data sheet PTB calibration

Data sheet factory calibration

Measurement principle of LDV

The principle is suitable for punctiform measurements of more dimensional velocities.

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Services with LDV

Are you more interested in a service with LDV? Then take a look at the flow diagnostics section.

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Equipment technology accessories

You need accessories like traverses, window chambers etc.? Please have a look at our accessories section.

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Your contact person

Dr. Ulrich Müller