Control system and method for providing position measurement with redundancy for safety checking
US8531182B2 · kind B2 · utility
3Cited by
11References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1836
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control system for use in safety critical human/machine control interfaces is described, more particularly a joystick type control system and particularly a joystick type control system utilizing magnetic positional sensing. The control system provides a control input device having a movable magnet, a pole-piece frame arrangement positioned about the magnet, at least three magnetic flux sensors being positioned in said pole-piece frame arrangement and a monitoring arrangement for monitoring the output signal of each of said at least three sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.