Multi-element ultrasonic transducer
US4604543A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 29, 1984 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Nov 29, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0622
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-element ultrasonic transducer in which elements are arrayed and in which a plate-shaped piezoelectric material has its one face formed with a uniform electrode and its other face formed alternately with electrodes corresponding to the respective elements and electrodes for separating the elements. These electrodes for the element separation are connected the uniform electrode opposed thereto and is fed with a ground potential. On the other hand, the electrodes corresponding to the respective elements are fed individually with transmitting and receiving signals independently of the elements so that the electronic scanning or focusing operations can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.