The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 2011
Filed:
Dec. 14, 2005
Derek Montgomery, New Westminster, CA;
Daryl G. James, Burnaby, CA;
David Yue Yan, Burnaby, CA;
Ivan Melnyk, Coquitlam, CA;
Ondrej Mecl, New Westminster, CA;
Derek Montgomery, New Westminster, CA;
Daryl G. James, Burnaby, CA;
David Yue Yan, Burnaby, CA;
Ivan Melnyk, Coquitlam, CA;
Ondrej Mecl, New Westminster, CA;
Photon Control Inc., Burnaby, British Columbia, CA;
Abstract
An L2F velocimeter comprises a probe for insertion into a fluid, the probe having an open area therein to allow the fluid to pass through. The probe comprises an illumination system to direct a pair of light beams, separated by a distance, through the open area, and a collection system to collect forward scattered light scattered from particles in the fluid. The collection system has an optical axis in common with the illumination system. The velocimeter further comprises an electro optical assembly connected to the probe to provide light to the illumination system, to receive light collected from the collection system, to measure a lapse time in fluctuations of the forward scattered light created by particles passing through the pair of light beams and to calculate the velocity of the fluid based on the lapse time and the separation distance.