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. 18, 2008
Filed:
Jun. 20, 2006
Daniel L. Gysling, Glastonbury, CT (US);
Douglas H. Loose, Southington, CT (US);
Daniel L. Gysling, Glastonbury, CT (US);
Douglas H. Loose, Southington, CT (US);
CiDRA Corporation, Wallingford, CT (US);
Abstract
A clamp on apparatusis provided that measures the speed of sound or acoustic disturbances propagating in a fluid or mixture having entrained gas/air to determine the gas volume fraction of the flowpropagating through a pipe. The apparatus includes an array of pressure sensors clamped onto the exterior of the pipe and disposed axially along the length of the pipe. The apparatus measures the speed of sound propagating through the fluid to determine the gas volume fraction of the mixture using adaptive array processing techniques to define an acoustic ridge in the k-ω plane. The slope of the acoustic ridgedefines the speed of sound propagating through the fluid in the pipe.