Accelerometer with cantilever and magnetic field detector
US7219549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Mar 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P2015/0828
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An accelerometer for measuring the displacement of a magnet body using magnetic detecting elements is provided, the accelerometer having superior measurement accuracy by suppressing influence of a peripheral magnetic field. The accelerometer has detecting units each having a cantilever which is elastically deformed so as to rotate around a fixed end thereof, a magnet body provided at a free end of the cantilever, and a magnetic detecting head portion disposed outside the rotation region of the cantilever. In order to correct detection signals output from the magnetic detecting head portions, the accelerometer has peripheral magnetic field detecting portions for measuring a peripheral magnetic field acting on the magnetic detecting head portions and the magnet bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.