Method of forming a resonance transducer
AssigneeMeasurement Specialties, Inc.
InventorMinoru Toda
Life of this patent
Estimating the term…
Abstract
A method of forming a resonance transducer comprises providing a piezoelectric body having a first acoustic impedance and a propagation medium having a second acoustic impedance. A matching layer is coupled between the piezoelectric body and the propagation medium. The body vibrating at the resonance frequency has a resonance impedance less than the second acoustic impedance of the propagation medium. The matching layer has a third acoustic impedance less than the second acoustic impedance for providing a high output or high sensitivity signal when operated at the resonance frequency.
Claims2
A method of forming a resonance transducer, said method comprising:
- providing a piezoelectric body having a first acoustic impedance indicative of material characteristics of said piezoelectric body;
- providing a propagation medium having a second acoustic impedance;
- and coupling a matching layer between said piezoelectric body and said propagation medium, wherein said piezoelectric body vibrating at the resonance frequency has a resonance impedance less than said second acoustic impedance associated with said propagation medium, and wherein said matching layer has a third acoustic impedance less than said second acoustic impedance associated with said propagation medium for providing a high output or high sensitivity signal to said medium when operated at the resonance frequency.
Dependencies are inferred from the claim text.