Acceleration sensor
US6227051A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2000 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Mar 21, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P21/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acceleration sensor has a piezoelectric element which includes a piezoelectric member layer in which a plurality of piezoelectric members are stacked and electrodes which are disposed in major opposed surfaces of the piezoelectric member layer; and a support member for supporting the piezoelectric element, wherein some piezoelectric members of the piezoelectric member layer are polarized. The electrodes are disposed in both surfaces of the polarized piezoelectric members. Capacitors which are formed by the polarized piezoelectric members and the electrodes in both surfaces of the polarized piezoelectric members are connected parallel to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.