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:
Apr. 05, 2022
Filed:
May. 03, 2018
Applicant:
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Inventors:
Kamyar Firouzi, Palo Alto, CA (US);
Butrus T. Khuri-Yakub, Palo Alto, CA (US);
Assignee:
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/66 (2022.01); G01F 1/667 (2022.01); G01N 29/024 (2006.01); G01N 29/46 (2006.01);
U.S. Cl.
CPC ...
G01F 1/667 (2013.01); G01N 29/024 (2013.01); G01N 29/46 (2013.01); G01N 2291/02836 (2013.01); G01N 2291/0427 (2013.01);
Abstract
Propagation of leaky Lamb waves in pipe walls is used to provide a clamp-on acoustic flow meter for single-phase fluid flow in pipes. The received acoustic signals can be analyzed analytically, or by matching to numerical models, or with machine learning. In a preferred embodiment, variation of penetration depth of the leaky Lamb waves into the fluid flow with frequency provides an approach for measuring flow rate vs. radius with a clamp-on flow meter.