Back to results
US 12,409,474 B2Granted
Devices for analysis of a fluid
AssigneeS.C.R. (Engineers) Limited
InventorsDwayne Mark Gyde, Paul David Harris, Robert Graham Orchard, Samuel James Whetnall
Life of this patent
Estimating the term…
Abstract
An ultrasonic transducer is described, including a piezoelectric element, a fluid medium contact layer, a matching layer between the piezoelectric element and the fluid medium contact layer, and a backing layer. Ultrasound sensor devices utilising the ultrasonic transducer are also described, for use in systems for analysing a fluid such as milk.
Claims26
An ultrasonic transducer including:
- a piezoelectric element, wherein the piezoelectric element has an acoustic impedance of between 15 to 22 MRayls;
- a fluid medium contact layer, wherein the fluid medium contact layer is a polymer layer;
- a matching layer between the piezoelectric element and the fluid medium contact layer, wherein the matching layer has an acoustic impedance of between 4 to 10 MRayls;
- and
- a backing layer, wherein the backing layer has an acoustic impedance of between 15 to 20 MRayls.
2 more elements
An ultrasound sensor device, including:
- an elongate hollow body configured to receive a fluid to be analysed;
- a first ultrasound transducer, provided at a first end of the hollow body, wherein the first ultrasound transducer includes:
- a piezoelectric element, wherein the piezoelectric element has an acoustic impedance of between 15 to 22 MRayls;
- a fluid medium contact layer, wherein the fluid medium contact layer is a polymer layer;
- a matching layer between the piezoelectric element and the fluid medium contact layer,
- wherein the matching layer has an acoustic impedance of between 4 to 10 MRayls;
- and
- a backing layer, wherein the backing layer has an acoustic impedance of between 15 to 20 MRayls.
5 more elements
Dependencies are inferred from the claim text.