Fluid Flow Sensors
AssigneeFT Technologies (UK) Ltd
InventorsAntonio JIMENEZ-GARCIA, Nils DEMERLE
Life of this patent
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Abstract
Fluid flow sensors include first and second spaced apart reflector surfaces, a generally cylindrical cavity with a central longitudinal axis between the reflector surfaces, and a plurality of transducers located in the first reflector surface, at least one of the transducers occupying a space between first and second radial distances from the longitudinal axis. The cavity further includes a narrowest part where the first and second reflector surfaces are separated by a minimum distance that is less than their separation along the longitudinal axis. The narrowest part at least partially surrounds the longitudinal axis and is at least partially located between the first and second radial distances from the longitudinal axis.
Claims10
A fluid flow sensor comprising:
- a first reflector surface;
- a second reflector surface spaced apart from the first reflector surface;
- a generally cylindrical cavity between the first and second reflector surfaces, the cavity comprising a central longitudinal axis;
- and
- a plurality of transducers located in the first reflector surface, at least one transducer of the plurality of transducers occupying a space from a first radial distance from the longitudinal axis to a second radial distance from the longitudinal axis;
- wherein the cavity further comprises a narrowest part where a separation between the first and second reflector surfaces is a minimum distance, the minimum distance being less than a separation between the first and second reflector surfaces along the longitudinal axis, and
- wherein the narrowest part at least partially surrounds the longitudinal axis and is at least partially located between the first radial distance and the second radial distance from the longitudinal axis.
The fluid flow sensor according to 1, wherein the narrowest part of the cavity is entirely located at least a distance equal to 30% of a radius of a smaller of the first and second reflector surfaces from the longitudinal axis.
Dependencies are inferred from the claim text.