Abstract

The purpose of this paper is to compare the drop sizing results of an Aerometrics phase/Doppler particle analyzer with those of a Malvern laser-diffraction instrument. Measurements were performed on a small pressure-swirl atomizer. Since the laser-diffraction instrument measures a line-of-sight average through different regions of the spray while the phase/Doppler instrument characterizes the spray in a small volume, a conversion procedure was necessary prior to comparison. After conversion to equivalent forms, the point-measured average drop sizes exhibited similar trends throughout the spray, but the phase/Doppler values were generally larger. The total volume flow rate measured by the phase/Doppler instrument was inconsistent at different axial locations but significantly larger than the actual value at most locations.

© 1987 Optical Society of America

Comparison of performance of drop-sizing instruments

Lee G. Dodge
Appl. Opt. 26(7) 1328-1341 (1987)

Droplet sizing interferometry: a comparison of the visibility and phase/Doppler techniques

T. A. Jackson and G. S. Samuelsen
Appl. Opt. 26(11) 2137-2143 (1987)

Malvern particle size measurements in media with time varying index of refraction gradients

B. H. Miles, Paul E. Sojka, and G. B. King
Appl. Opt. 29(31) 4563-4573 (1990)

Calibration of the Malvern particle sizer

Lee G. Dodge
Appl. Opt. 23(14) 2415-2419 (1984)

Deconvolution technique for line-of-sight optical scattering measurements in axisymmetric sprays

Dean C. Hammond
Appl. Opt. 20(3) 493-499 (1981)