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. 21, 2020
Filed:
Aug. 30, 2018
Sentec Ltd, Cambridge, GB;
Wenpeng Deng, Cambridge, GB;
Jan Bennett, Cambridge, GB;
David Healy, Stowmarket, GB;
Andrew Nicholas Dames, Cambridge, GB;
James William Evett, Winslow, GB;
Sentec Ltd., Cambridge, GB;
Abstract
A method for an ultrasonic time-of-flight flow meter () includes driving an ultrasonic transducer () using a first waveform (V(t)) for a first duration (Δt), the first waveform (V(t)) configured to cause oscillation () of the ultrasonic transducer (). The method also includes driving the ultrasonic transducer () using a second waveform (V(t)) for a second duration (Δt). There is a discontinuity between the first waveform (V(t)) and the second waveform (V(t)). The second waveform (V(t)) and the second duration (Δt) are configured to maintain a voltage (V(t)) across the ultrasonic transducer () within a predetermined range (V, V).