Magnetic proximity fuze

A Magnetic proximity fuze was patented by P.J. Eliomarkakis, (United States Patent US2434551 of January 13, 1948) ^[1] although similar devices had been in service for nearly a decade. It is a type of proximity fuze that initiates a detonator in a piece of ordnance such as a land mine, naval mine, depth charge, or shell when the fuse's magnetic equilibrium is upset by a magnetic object such as a tank or a submarine.

Magnetic field sensors and movement sensors inside the ordnance detect changes to the terrestrial magnetic field of the ordnance caused by another ferromagnetic object. A signal processor inside the ordnance receives the signals from the magnetic field sensors and movement sensors and activates the detonator which will then detonate the explosives within the ordnance. ^[2]

Examples

Examples of pieces of ordnance that employ a magnetic fuze include:

• the Chinese Chen-2 bottom mine
• the Egyptian T-93 mine

See also

• Proximity detector
• Proximity sensor
• Reed switch

References

1. ^ http://www.freepatentsonline.com/2434551.pdf
2. ^ http://www.patentstorm.us/patents/5423262/fulltext.html

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