Integrated magnetic field sensors for fuzes
US6295931A · kind A · utility
16Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1999 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | Mar 9, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C13/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for electronically controlling ordnance fuzes by sensing magnetic fields proximate the ordnance via a magnetic field sensor. The sensor is preferably a giant magnetoresistance detector. For spinning ordnance, in-flight cumulative range can be calculated by counting turns of the spinning ordnance. Ordnance may be armed a pre-determined time after exit of the ordnance from a weapon firing the ordnance as determined by the magnetic field sensor. The invention is also of a giant magnetoresistance sensor and method for making same and an apparatus for and method of sensing angular velocity for spinning ordnance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.