05311290 is referenced by 41 patents and cites 12 patents.

A method and apparatus for positioning, aligning and orienting fibers in flowing fluids, to permit fibers such as wood pulp fibers to be accurately imaged and rapidly measured with little operator involvement, utilizing a plugging resistant and fouling resistant sheath flow cell, is described. An embodiment is disclosed which simultaneously determines the distributions of shape (curl) and length of samples of wood pulp fibers. Fibers are transported in a dilute water suspension through a sheath flow cell that orients fibers normal to an imaging system that includes a two-dimensional CCD video camera. Images of fibers are analyzed rapidly by a processor, which calculates the shape and length of individual fibers. The data are displayed on a cathode ray tube screen while a pulp sample is being analyzed, and are stored in processor memory for further analysis.

Title
Imaging apparatus and method of fiber analysis
Application Number
7/953623
Publication Number
5311290
Application Date
September 30, 1992
Publication Date
May 10, 1994
Inventor
Timothy D Finnigan
Vancouver
CA
Andrew G Robertson
Vancouver
CA
James Olson
Vancouver
CA
Assignee
University of British Columbia
CA
Pulp and Paper Research Institute of Canada
CA
IPC
G01B 11/04
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