High-accuracy particle sizing by interferometric particle imaging

On the morphology of irregular rough particles from the analysis of speckle-like interferometric out-of-focus images

“…2(b). We can observe the very good quantitative agreement between these two figures, as predicted by relation (9). In particular, the shapes of the two factors are identical and the scaling factor λ B ( ) is perfectly recovered.…”

“…The differences between the 2D-autocorrelations allow clearly to eliminate the morphologies that do not correspond. We have already noted that the number of emitters does not affect the validity of relation (9). Furthermore, the different emitters can be associated to different separated particles.…”

“…Specific set-ups can be further designed for the characterization of droplets or bubbles in a 3D volume [7,8]. Enhanced algorithms are used to improve the accuracy of the fringe's frequency determination [9]. Combining interferometric out-of-focus imaging and Particle Image Velocimetry, simultaneous planar measurements of droplet velocity and size with gas phase velocities in a spray can be realized [10].…”

Third glare point effect in 90°Interferometric Laser Imaging for Droplet Sizing

“…These observations are of great importance for the design of embedded instruments to be used in wind tunnels or cloud chambers, applied to airborne applications or the wide variety of known applications [26][27][28][29][30][31]. New configurations could be interesting [32] and accurate image processing algorithms need to be developed and optimized [33,34].…”

Measurement of irregular particle size from the reconstructed shape images

“…Particle measurements are of great significance given that particles exist widely in the atmosphere, industry, manufacturing, and other fields [1][2][3][4][5]. Many methods such as microscopic imaging technology, digital holographic imaging technology and phase Doppler interferometry have been applied to size measurement.…”