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Proceedings Paper

Measurement Of Velocity With Cross-Correlation Technique For An Industrial Application
Author(s): F Francini; G Longobardi; R Bottos; F Grego
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Paper Abstract

In the process of continuous spinning it is particulary important the measurement of the velocity of textile fibers: in fact the uniformity, smoothness and tenacity of the yarn depend on the velocity of the fibers at the moment they reach the twisting organ and on the average number of the collected fibers. It is important that the applied tecnique should not affect the flow. An electro-optical system is described for the measurement of the velocity of fibers ( 20 mm long, 25 μm diameter) suspended in an airflow. The samples are carried along by the surrounding medium in a duct that has two windows (one for lighting, the other for viewing). A cross correlation of the detectors output is carried on to obtain the velocity and density of the fibers.

Paper Details

Date Published: 17 November 1986
PDF: 5 pages
Proc. SPIE 0654, Automatic Optical Inspection, (17 November 1986); doi: 10.1117/12.938286
Show Author Affiliations
F Francini, Istituto Nazionale di Ottica (Italy)
G Longobardi, Istituto Nazionale di Ottica (Italy)
R Bottos, Cerimates (Italy)
F Grego, Cerimates (Italy)


Published in SPIE Proceedings Vol. 0654:
Automatic Optical Inspection
Lionel R. Baker; H. John Caulfield, Editor(s)

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