Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)
- 1994.11a
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- Pages.21-26
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- 1994
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- 1975-342X(pISSN)
AN INTRODUCTION TO SEMICONDUCTOR INITIATION OF ELECTROEXPLOSIVE DEVICES
- Willis K. E. (Vehicle Safety Systems Quantic Industries, Inc.) ;
- Whang, D. S. (Vehicle Safety Systems Quantic Industries, Inc.) ;
- Chang, S. T. (Ignition Systems Division Agency for Defense Development)
- Published : 1994.11.01
Abstract
Conventional electroexplosive devices (EED) commonly use a very small metal bridgewire to ignite explosive materials i.e. pyrotechnics, primary and secondary explosives. The use of semiconductor devices to replace “hot-wire” resistance heating elements in automotive safety systems pyrotechnic devices has been under development for several years. In a typical 1 amp/1 watt electroexplosive devices, ignition takes place a few milliseconds after a current pulse of at least 25 mJ is applied to the bridgewire. In contrast, as for a SCB devices, ignition takes place in a few tens of microseconds and only require approximately one-tenth the input energy of a conventional electroexplosive devices. Typically, when SCB device is driven by a short (20
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