Particle size and position measurement with digital holography

Mike Adams; Thomas M. Kreis; Werner P. O. Jueptner

doi:10.1117/12.281165

17 September 1997 Particle size and position measurement with digital holography

Mike Adams, Thomas M. Kreis, Werner P. O. Jueptner

Proceedings Volume 3098, Optical Inspection and Micromeasurements II; (1997) https://doi.org/10.1117/12.281165
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

A method for particle size and position measurement based on digital holography is described. A plane wave passes a particle stream and the diffracted wave is recorded directly by a CCD-sensor without any focusing optics. The reconstruction of the particle distribution from the recorded diffraction pattern is done numerically with a computer. Diffraction patterns from different directions are taken at a fixed instant of time, evaluated independently and finally the reconstructed scenes are combined by tomographic methods.

Citation Download Citation

Mike Adams, Thomas M. Kreis, and Werner P. O. Jueptner "Particle size and position measurement with digital holography", Proc. SPIE 3098, Optical Inspection and Micromeasurements II, (17 September 1997); https://doi.org/10.1117/12.281165

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