MUNITION
Assignee
HONEYWELL INC., A DE CORP
Filed
Feb 21, 1984
Granted
Apr 8, 1986
Location
HOPKINS MN US
Abstract
In combination: an air core coil; a passive detector connected to said coil for giving a first output in response to change in the ambient magnetic field due to movement of a magnetic body near the coil; an active detector connected to the same coil and operable to create a local magnetic field about the coil and to give a second output in response to changes in the local field due to the movement of the body; apparatus energizing the active detector in response to the output of the passive detector; and apparatus giving a further output in response to simultaneous outputs from both the detectors.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jul 13, 1984
Rescinded
Sep 10, 1985
Duration
1 year, 1 month
Inventor
- 1DAVID P. ERDMANN
Record Details
- Patent number
- US 4580497
- Application
- 00658185
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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