3D-mini-laser-doppler-velocimeter

The standard 3D miniLDV System consists of three miniLDV probes in a custom-designed alignment bracket, three Processing Engine hardware processors with USB interface, and the 3D Burst Processor Acquisition Manager software, which synchronizes the three systems and calculates 3D measurement statistics.

The 3D miniLDV is a modular design consisting of three fully independent systems, so it is perfect for research facilities with a variety of experimental projects. (Contact us regarding custom systems comprised of a single miniLDV system and a 2D miniLDV system.)

With the continuing tradition of ease of use and short time from setup to results, the 3D miniLDV System becomes an attractive alternative to 3D PIV techniques such as Stereo PIV.


Stereo PIV3D miniLDV
Measurement fieldU, V, W, u', v', w'U, V, W, u', v', w', u'v', u'w', v'w'
Mean velocity accuracy99.0% or better99.7% or better
Spatial resolutionLimited by camera, laser power, and field of viewAs low as 20 microns
Maximum velocity rangeLimited by field of view and inter-frame time500 m/sec (higher with modified electronics)
Maximum region of interrogation20 x 20 cm or less for standard systemsLimited only by traverse total travel
Computer requirementsFast processing, high-speed busses for acquisition, large hard disk arrays for storageModern processing, USB bus... hours of data storage in a typical notebook drive.
ModularitySplits into two 2D systems
(if user owns an extra laser)
Splits into three fully independent 1D systems