Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe
CA 2474071 C · Owner: Cidra Corporate Services, Inc. · Inventors: Loose, Douglas H.; Gysling, Daniel L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15 - 18 placed at predetermined axial locations x1 xN disposed axially along a pipe 14. For measuring at least one parameter of a solid particle/fluid mixture 12 flowing in the pipe 14. The pressure senors 15 - 18 provide acoustic pressure signals P1(t)-PN(t) to a signal processing unit 30 which determines the speed of sound amix of the particle/fluid mixture 12 in the pipe 14 using acoustic spatial array signal processing techniques. The primary parameters to be measured include fluid/particle concentration fluid/particle mixture volumetric flow and particle size. Frequency based , …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
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- Filed January 23, 2003 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2025.
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