Recent developments in Exploding Foil Initiator (EFI) based electronic safety, arming and initiation systems

摘要

In modern explosive systems, low-voltage electrically-driven 'hot wire' detonator systems (incorporating primary explosive) have increasingly given way to higher-voltage explosive detonators (such as Exploding Bridgewire (EBW) and Exploding Foil Initiator (EFI) types) containing secondary explosive. The high degree of insensitivity, reliability, precision and functionality afforded by electronic in-line EFI based systems (coupled with their rapid and repeatable activation time) has been applied as a key enabling technology into a growing portfolio of Electronic Safety & Arming Units (ESAUs) in modern system applications.