公开(公告)号：US20230243682A1

公开(公告)日：2023-08-03

申请号：US17926184

申请日：2021-05-14

Applicant: The University of Warwick

Inventor： Steven DIXON ,  Zhichao LI

IPC: G01F1/667

CPC classification number: G01F1/667

Abstract: A method of determining flowrate of a fluid (7) in a pipe is disclosed. The flowrate is determined using a flowmeter having first and second ultrasonic transducers (10; FIG. 8A) separated along the pipe by a given distance (D; FIG. 1) and inclined so that waves in the fluid propagate at a given path angle (θ; FIG. 1). For a given inner pipe diameter (d; FIG. 1), there is a given integer number of reflections between the first and second ultrasonic transducers. The method comprises obtaining flow rate measurements using wave packets (18) corresponding to an integer number of reflections which is less than said given number.

公开(公告)号：US20210325218A1

公开(公告)日：2021-10-21

申请号：US17275767

申请日：2019-09-06

Applicant: The University of Warwick

Inventor： Steven DIXON ,  Zhichao LI ,  Jonathan HARRINGTON

IPC: G01F1/66 ,  G01F15/18

Abstract: A clamp-on ultrasonic transducer is disclosed. The clamp-on ultrasonic transducer comprises an ultrasound-propagating wedge having a first face and a second face which is inclined to the first face. The clamp-on ultrasonic transducer further comprises a first piezoelectric element which is mounted on the second face and which is directed obliquely at the first face. The wedge has a width, w, between first and second side walls, wherein the width, w, is less than or equal to 10 mm.