US 12,281,921 B2
Ultrasonic fluid meter incorporating a pressure sensor
Abbas Sabraoui, Rueil Malmaison (FR); Ahmet Samed Basturk, Rueil Malmaison (FR); and Oussama Abid, Rueil Malmaison (FR)
Assigned to SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed by SAGEMCOM ENERGY & TELECOM SAS, Rueil Malmaison (FR)
Filed on Apr. 27, 2023, as Appl. No. 18/140,300.
Claims priority of application No. 2204101 (FR), filed on Apr. 29, 2022.
Prior Publication US 2023/0349737 A1, Nov. 2, 2023
Int. Cl. G01F 1/68 (2006.01); G01F 1/34 (2006.01); G01F 1/667 (2022.01); G01F 15/00 (2006.01)
CPC G01F 1/34 (2013.01) [G01F 1/667 (2013.01); G01F 1/68 (2013.01); G01F 15/005 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An ultrasonic fluid meter comprising:
a conduit in which a fluid can flow;
an ultrasonic measurement device comprising two transducers arranged to emit and receive ultrasonic signals in the conduit, the ultrasonic measurement device being arranged to evaluate a current flow rate of the fluid from the time of flight of the ultrasonic signals between the transducers;
a valve positioned along a length of the conduit between the two transducers, the valve comprising a movable member which extends in the conduit and for which a current position can be regulated in order to control the current flow rate of the fluid;
a position sensor configured to measure the current position of the movable member;
a pressure sensor arranged to measure the pressure of the fluid in the conduit; and
a processing circuit arranged, if the current position of the movable member is such that the current flow rate cannot be measured by the ultrasonic measurement device:
to evaluate the current position of the movable member;
to evaluate the pressure of the fluid at the current flow rate;
to evaluate the pressure of the fluid at zero flow rate; and
to evaluate the current flow rate as a function of the current position of the movable member, the pressure of the fluid at the current flow rate and the pressure of the fluid at zero flow rate.