Ultra broadband sound and ultrasonic transducer
US10315223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Oct 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0611
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a transverse width mode for sound and ultrasound generation and reception. The transverse width mode can be combined with conventional longitudinal or transverse mode to make sonic and ultrasonic transducers and/or arrays of multiple resonant modes, a broadband coupled mode or their combinations. Due to its half-wavelength resonance nature, when the transverse width mode is designed to operate with suitable head mass and/or matching layers, ultra broadband transducers of moderate to high sound pressure level can be realized. With active materials having low transverse sound velocities, the transverse dimensions of each transducer element can be kept about or smaller than half the wavelengths of sounds in water and human tissues, making the transverse width mode highly suited for various array designs and operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.