A Fast, Low Resistance Switch for Small Slapper Detonators,

Abstract

A novel design for a shock compression conduction switch for use with slapper detonators is described. The switch is based on the concept of an explosively driven flyer plate impacting a plastic insulator and producing sufficient pressure within the insulator to produce a conduction transition. An analysis of the functioning of the switch is made using a simple Gurney model for the explosive, and basic shock wave theory to calculate impact pressure and switch closure times. The effect of explosive tamping is considered, and calculations are carried out for two donor explosive thicknesses and a range of flyer plate thicknesses. The new switch has been successfully tested in a series of experimental slapper detonator firings. The results of these tests show trends in overall agreement with those predicted by the calculations. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1986
Accession Number
ADA178562

Entities

People

  • D. A. Jones
  • D. D. Richardson

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Chemistry
  • Compression
  • Detonations
  • Detonators
  • Dielectrics
  • Explosives
  • Films
  • Impedance
  • Lead Azides
  • Materials
  • Physical Chemistry
  • Physical Properties
  • Resistance
  • Shock Waves
  • Switches
  • Thickness
  • Waves

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Electrical Engineering
  • Explosive Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems