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1. WO2022069862 - ACOUSTIC RESONANCE FLUID FLOW MEASUREMENT DEVICE AND METHOD

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Publication Number WO/2022/069862
Publication Date 07.04.2022
International Application No. PCT/GB2021/052335
International Filing Date 09.09.2021
IPC
G01P 5/24 2006.1
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
5Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
24by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
G01F 1/66 2006.1
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66by measuring frequency, phase shift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
CPC
G01F 1/662
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66by measuring frequency, phaseshift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
662Constructional details
G01F 1/667
GPHYSICS
01MEASURING; TESTING
FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
1Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
66by measuring frequency, phaseshift, or propagation time of electromagnetic or other waves, e.g. ultrasonic flowmeters
667Schematic arrangements of transducers of ultrasonic flowmeters; Circuits therefor
G01P 5/244
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
5Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
24by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
241by using reflection of acoustical waves, i.e. Doppler-effect
244involving pulsed waves
G01P 5/248
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
5Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
24by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
245by measuring transit time of acoustical waves
248by measuring phase differences
Applicants
  • FT TECHNOLOGIES (UK) LTD [GB]/[GB]
Inventors
  • CASTILLO, Javier
  • SOTIROPOULOS, Sotiris
Agents
  • PROCK, Thomas
Priority Data
2015619.601.10.2020GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ACOUSTIC RESONANCE FLUID FLOW MEASUREMENT DEVICE AND METHOD
(FR) DISPOSITIF ET PROCÉDÉ DE MESURE DE DÉBIT DE FLUIDE À RÉSONANCE ACOUSTIQUE
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Abstract
(EN) A method of operating an acoustic resonance fluid flow sensor. The method comprises emitting an acoustic stimulus signal comprising a plurality of frequencies into an acoustic resonance cavity of the acoustic resonance fluid flow sensor, sensing an acoustic response signal within the acoustic resonance cavity and deriving the phases or equivalent group delays of one or more frequency components of a frequency spectrum of the acoustic response signal.
(FR) L'invention concerne un procédé de fonctionnement d'un capteur d'écoulement de fluide à résonance acoustique. Le procédé consiste à émettre un signal de stimulus acoustique comprenant une pluralité de fréquences dans une cavité de résonance acoustique du capteur d'écoulement de fluide à résonance acoustique, détecter un signal de réponse acoustique à l'intérieur de la cavité de résonance acoustique et dériver des phases ou des retards de groupe équivalents d'une ou de plusieurs composantes de fréquence d'un spectre de fréquence du signal de réponse acoustique.
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