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Proceedings Paper

Digital image processing of double pulse holograms: investigation of velocity and number density of droplets in sprays
Author(s): Andreas Ante; Johannes K. Schaller; Detlev K. Fiedler; Christo G. Stojanoff
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Paper Abstract

A holographic measurement system was combined with digital image processing for the investigation of droplet velocity and number density in the injection spray of a model diesel engine. The model engine consisted of a conventional injection pump and a test chamber that could be operated at high pressure and temperature to simulate the conditions in an operating diesel engine. The holographic images were reconstructed and fed into a PC by means of a CCD camera. Up to 30 image sections are necessary to store the information of a whole hologram. The software developed for the segmentation of the droplets and the determination of the droplet velocity is presented.

Paper Details

Date Published: 15 November 1994
PDF: 9 pages
Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); doi: 10.1117/12.194331
Show Author Affiliations
Andreas Ante, RWTH Aachen (Germany)
Johannes K. Schaller, RWTH Aachen (Germany)
Detlev K. Fiedler, RWTH Aachen (Germany)
Christo G. Stojanoff, RWTH Aachen (Germany)

Published in SPIE Proceedings Vol. 2248:
Optical Measurements and Sensors for the Process Industries
Christophe Gorecki; Richard W. T. Preater, Editor(s)

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