Ultrasonic fluid meter incorporating a pressure sensor
AssigneeSagemcom Energy & Telecom SAS
InventorsAbbas Sabraoui, Ahmet Samed Basturk, Oussama Abid
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Abstract
An ultrasonic fluid meter includes an ultrasonic measuring device, a valve comprising a movable member, 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 flow rate as a function of the current position of the movable member, of the pressure of the fluid to the current flow rate, and of the pressure of the fluid at zero flow rate.
Claims13
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.
Dependencies are inferred from the claim text.