Ultrasonic transducer detector with resonant unit having a thickness of half-wavelength of the operating frequency
US8754573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2011 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 22, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2007/0078
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic transducer detector having a high operating frequency is provided. The ultrasonic transducer detector comprises a substrate and an ultrasonic transducer array. The substrate has a plurality of openings, and the ultrasonic transducer array is disposed on the substrate. The ultrasonic transducer array has a plurality of resonance units, and the thickness of each resonance unit is equivalent to ½ wavelength of the operating frequency of the ultrasonic transducer. Each resonance unit comprises an oscillating element and a piezoelectric element. The oscillating element has a first surface adjacent to the substrate, and the piezoelectric element is disposed on the first surface and located in the corresponding opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.