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. 30, 2021
Filed:
Jul. 12, 2018
Jinchi Zhang, Quebec, CA;
James David Glascock, League City, TX (US);
Jinchi Zhang, Quebec, CA;
James David Glascock, League City, TX (US);
Olympus America Inc., Center Valley, PA (US);
Cudd Pressure Control, Inc., Woodlands, TX (US);
Abstract
Disclosed is a system and method for ultrasonic measurement of the average diameter and roundness profile of a tube. A roundness algorithm represents the angular dependence of the tube surface profile as a sum of Fourier components, each component being a harmonic representing an integer number of undulations per revolution, with '0' (the first harmonic) corresponds to an average circle associated with the tube outer surface. A calibration block is used to calibrate the first harmonic, representing the average tube diameter.