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The exploding-bridgewire detonator (EBW, also known as exploding wire detonator) is a type of detonator used to initiate the detonation reaction in explosive materials, similar to a blasting cap because it is fired using an electric current. EBWs use a different physical mechanism than blasting caps, using more electricity delivered much more ...
EWM has found its most common use as a detonator, named the exploding-bridgewire detonator, for nuclear bombs. Bridgewire detonators are advantageous over chemical fuzes as the explosion is consistent and occurs only a few microseconds after the current is applied, with variation of only a few tens of nanoseconds from detonator to detonator. [7]
They provide the explosives used in coal and metal mining, quarry and construction as well as pipeline and seismic used for oil and gas exploration. [5] The types of explosives manufactured includes ammonium nitrate , dynamite , electric, non electric and electronic detonators , detonating cord and cast boosters .
Top: small nonel detonator with 2 ms delay for chaining nonel tubes; middle: class B SPD detonator; bottom: class C SPD detonator Inserting detonators into blocks of C-4 explosive. A detonator is a device used to make an explosive or explosive device explode. [1]
(A) Slapper detonator's pellet or flyer impacts a wider area of surface on the explosive output charge, and even though energy is lost to the sides of the area impacted, a cone of explosive is efficiently compressed. (B) EBW detonators only initiate a single point, and energy is lost in all directions, making the energy transfer less efficient.
An Alabama man was arrested and indicted this week on charges that he detonat ed an explosive device outside the Alabama attorney general's office in late February, the U.S. Justice Department ...
By passing an extremely high amount of electric current through the bridgewire, it gets rapidly vaporized, causing a small explosion. This is exploited in exploding-bridgewire detonators (EBWs), used for very safe and highly precise initiation of explosives, e.g. in nuclear weapons.
Timelapse footage published by the Cooperative Institute for Research in the Atmosphere shows how the Palisades and Eaton Fires ignited and rapidly grew over the last two days.