detonator

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detonator

(dĕ`tənā'tər), type of explosiveexplosive,
substance that undergoes decomposition or combustion with great rapidity, evolving much heat and producing a large volume of gas. The reaction products fill a much greater volume than that occupied by the original material and exert an enormous pressure, which can be
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 that reacts with great rapidity and is used to set off other, more inert explosives. Fulminate of mercury mixed with potassium chlorate is a commonly used detonator. The word is also applied to equipment which, by flame, spark, percussion, friction, or pressure, is used to set off a chemical detonator.

Detonator

 

a high-explosive charge intended to ensure the complete explosion of the main charge of a shell, mine, aerial bomb, or blasting charge. Pressed cylindrical high-explosive charges (tetryl, phlegmatized hexogens of pentaerythritol tetranitrate [PETN], or trinitrotoluene [TNT]), which are more sensitive to detonation than the explosive of the charge, are usually used. One form of detonator is the so-called TNT plug, which is used for ammunition with a bursting charge of ammonites; it also protects the main charge from atmospheric moisture.

The weight and size of detonators are determined by the quantity of explosive in the bursting charge of the ammunition, the form and sensitivity to detonation of the explosive, and the purpose of the ammunition. An additional detonator is used if the power of the igniter detonator is inadequate.

REFERENCES

Vzryvchatye veshchestva i porokha. Moscow, 1955.
lakhontov, A. D. Vzryvnye raboty i vzryvchatye materialy. Moscow, 1959.
Tret’iakov, G. M. Boepripasy artillerii. Moscow, 1947.

IU. V. FEDOROV

detonator

[′det·ən‚ād·ər]
(engineering)
A device, such as a blasting cap, employing a sensitive primary explosive to detonate a high-explosive charge.

detonator

References in periodicals archive ?
The DigiShot Plus BenchBox facilitates the blast design which can be pre-loaded into the Bench Box while separated from the detonators or after connection from a safe location.
To get the detonators to fire in some acceptable sequence, therefore, delay periods were in the past kept as short as possible," he said.
Inspector Andrew Griffiths told the Daily Post the detonators were "very small and very old".
The detonators are described as small discs, approximately 5cm in diameter with two lead strips on either side.
The use of the AXXIS system and electronic detonators allowed the mine to better control and manage the shock waves and rock movement arising from the faulty ground conditions," said Grant.
Manama: Bahrain's Public Security Chief Major-General Tariq Hassan Al Hassan said joint efforts were underway between the security bodies in Bahrain and Saudi Arabia to uncover the circumstances of the attempt to smuggle RDX - a highly explosive material- and detonators intended to be used in Saudi Arabia.
In a statement, police said: "With the assistance of the military, officers have recovered a number of ageing detonators from the side of the A1 adjacent to Marne Barracks.
The search did turn up old detonators near the motorway, which were blown up.
The spokesman also slammed the IAEA for delaying its report and assessment over Tehran's explanations about its use of Exploding Bridge Wire (EBW) detonators.
Tehran has provided the UN nuclear watchdog with -information about detonators with possible military applications, under an accord intended to allay concerns about Tehran's atomic activities, an Iranian news agency said on Mar 4.
ISLAMABAD (TAP) - Pakistan police found explosives and two detonators near former military ruler Pervez Musharraf's home.
Koderma (Jharkhand), June 23 ( ANI ): Police seized huge cache of detonators, gelatine sticks and fuse wires on Saturday from the Koderma district of Jharkhand and arrested three people.