Magnetic sensor system
US6972558B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensor assembly measures changes in the position of a lever arm. The magnetic sensor assembly has a support. A lever arm can pivot about an axis of rotation or a pivot point and is attached to the support at a first end of the lever arm. A magnet produces a magnetic field adjacent the first end of the lever arm and is fixed to rotate in a predetermined arc about the pivot point or axis of rotation in response to a pivotal movement of the lever arm. A magnetic sensor is positioned in proximity to the magnet to detect changes in the magnetic field due to rotation of the magnet along a predetermined arc. Preferably the predetermined arc has a constant radius of curvature forming at least a portion of a circular arc. The magnetic sensor assembly preferably employs a magnet that is at least arcuate in shape more preferably the magnet is annular or penannular forming a ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.