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Original Articles

Simultaneous shape and size measurements of irregular rough particles by an IPI system with double receivers

, , , , , & show all
Pages 1226-1234 | Received 17 Nov 2018, Accepted 14 Apr 2019, Published online: 26 Apr 2019
 

ABSTRACT

This paper proposes a method of obtaining the shape and the size of irregular rough particles, which are abundant in particle fields. The approach uses the infocused image of the particle to determine its size, and an improved relation between the central peak of the 2D-autocorrelation of its defocused image and its size to obtain the shape. An interferometric particle imaging system with double receivers is established to simultaneously collect the infocused image and defocused image. Experiments confirm the effectiveness of the proposed algorithm with a measurement relative error on the sample particles not exceeding 10.4%. In general, this method can offer significant perspectives on the characterization of particle fields.

Acknowledgements

We thank our colleagues X.L. Wang and F. Liu who provided insight and expertize that greatly contributed to the research.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was supported by the National Natural Sciences Foundation of China [grant number 41275146].

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