Integrated solutions in Particle Dynamics Analysis >

The measurements are performedat the intersection of two laser beams, where there is an interference fringepattern of alternating light and darkplanes. > The processor measures the phasedifference between the Doppler signals from different detectors. This is a direct measure of the particle diameter. > Results are processed by the BSAFlow Software Packages. > Particles scatter the light, whichappears to flash, as the particles pass through the bright planes of the interfer- ence pattern. Receiving optics placed at an off-axis location focus scattered light onto multiple detectors. > Each detector...

Particle Dynamics Analysers can beused for a wide range of applications, where detailed information on the size and velocity of individual droplets, bubbles or spherical solid particles is needed. These applications are relatedto research activities at universities orresearch centres as well as for indu-strial process optimisation. > Two-phase flows, where a gaseous phase is dispersed in a liquid carrierphase, play an important role in manyindustrial processes. The dispersed gaseous phase quite often exists in theform of discrete bubbles. The size dis-tribution of the bubbles affects the process...

Engine fuel injector study using a Dantec Dynamics PDA system. Photo courtesy of AVL. Automobile spray painting. Photo courtesy of DaimlerChrysler. Cavitation measurement near the blades of a propeller. 5 >

FiberPDA FiberPDA > The FiberPDA receiving probe is basedon fibre technology with three receiving apertures. This configuration yields a large measurable size range while maintaining high resolution. A large selection of front lenses, beam expanders and spatial filters (112 mmprobe) and easily exchangeable aper- ture masks provides the flexibility toadapt the system to measurement dis-tance, size and velocity range. The FiberPDA receiving probe isconnected to the detector unit througha fibre cable containing three receivingfibres. The detector unit contains three, four or five photomultipliers,...