Piezoelectric sensor including overlapping cutout sections in a signal electrode, a first ground electrode, and a second electrode
US10768066B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2014 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Jul 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/875
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A piezoelectric sensor including: a piezoelectric sheet; a first ground electrode integrally laminated on a first side of the piezoelectric sheet and having a first cutout section; a signal electrode integrally laminated on a second side of the piezoelectric sheet and having a third cutout section; and a second ground electrode integrally laminated on the signal electrode so as to be electrically insulated from the signal electrode and having a second cutout section. The cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are at least partially overlapped with one another in a thickness direction of the piezoelectric sheet. A portion of the piezoelectric sheet exposed from a portion where the cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are overlapped with one another serves as an exposed section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.