Ultrasonic transducer, method for assembling same and flowmeter comprising at least one such transducer
US11679414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2016 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is an ultrasonic transducer including: at least one piezoelectric wafer having two parallel planar main faces: a front face and a posterior face; at least one posterior plate having two parallel planar main faces: an anterior face and a rear face, the anterior face of the posterior plate extending facing, and in contact with, the posterior face of the piezoelectric wafer. The posterior plate has a thickness between three and seven times the thickness of the piezoelectric wafer. The posterior plate has an acoustic impedance between 10 MPa·s·m−1 and 35 MPa·s·m−1. Also disclosed is a method for assembling such a transducer as well as a flowmeter including at least one such transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.