Accession Number : ADD014206

Title :   RF and DC Desensitized Electroexplosive Device.

Descriptive Note : Patent Application, Filed 24 Jul 89,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Krainiak, John W ; Speaks, Paul D ; Cornett, Michael S

Report Date : 24 Jul 1989

Pagination or Media Count : 19

Abstract : This patent application relates to electroexplosive devices ( EEDs) such as detonators, blasting caps and squibs, in particular to a method and device for desensitizing EEDs to electromagnetic radiation and electrostatic charges with the added ability to desensitize the device to essentially dc currents. An insensitive electroexplosive device to electrically ignite explosive is disclosed. This device is inherently immune to radio frequency (RF) radiation, and also provides protection against DC or very low frequency RF induced by arcing. A central feature is use of zeners and capacitors to form a reactively balanced bridge circuit. When constructed in semiconductor form, as described in this application , the device is capable of incorporation in small caliber ordnance. (EDC)

Descriptors :   *DESENSITIZING, *EXPLOSIVES INITIATORS, *PATENT APPLICATIONS, AVALANCHE DIODES, BALANCE, CAPACITORS, CIRCUITS, DETONATORS, DIRECT CURRENT, ELECTRIC BRIDGES, ELECTRIC ARCS, ELECTROMAGNETIC RADIATION, ELECTROSTATIC CHARGE, IMMUNITY, LOW FREQUENCY, ORDNANCE, RADIOFREQUENCY, SEMICONDUCTORS, VERY LOW FREQUENCY

Subject Categories : Electrical and Electronic Equipment
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE