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:
Oct. 24, 2023
Filed:
Mar. 11, 2019
Omron Corporation, Kyoto, JP;
OMRON CORPORATION, Kyoto, JP;
Abstract
A flow rate measurement apparatus includes first and second transducers provided at different positions in a longitudinal direction of a pipe, the at least two transducers including first and second transducers. The flow rate measurement apparatus further includes a transmitter and receiver. The transmitter transmits a transmission signal, which is an ultrasonic signal having a band wider than the ultrasonic signal, or a plurality of ultrasonic signals having a plurality of different frequency ranges. The receiver separates a target signal passing through a fluid from the received signal by utilizing that an attenuation rate of the ultrasonic signal in the fluid in a predetermined frequency band is different from an attenuation rate of the ultrasonic signal in the pipe in the frequency band, and measures a flow rate based on a separated target signal.