Device for detecting angular velocity
US5253525A · kind A · utility
5Cited by
9References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An angular velocity sensor having a casing in which a disk shaped permanent magnet member is arranged so that it floats on a magnetic fluid filled in the casing. A Hall motor is provided for rotating the permanent magnet about its axis in the casing, and a detection unit is provided detecting an inclination of the magnet member about an axis which is transverse to the axis about which the magnet member rotates, which inclination is generated when the sensor is subjected to an angular movement. An angular velocity of such an angular movement is calculated from the detected degree of inclination of the magnet member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.