Shock hardened initiator and initiator assembly

摘要

Embodiments of an initiator support assembly that includes an initiator housing including an initiator cavity system are generally described herein. In some embodiments, a bridge substrate is positioned within the initiator cavity. The bridge substrate includes a substrate base including a uniform first planar surface and an opposed second surface. The bridge substrate further includes a first bridge contact extending over the substrate base. The first bridge contact is substantially flush with the first planar surface. A second bridge contact extends over the substrate base. The second bridge contact is substantially flush with the first planar surface. The first and second bridge contacts and the uniform first planar surface form a continuous planar mounting surface. An explosive charge, positioned within the initiator cavity, includes a charge mounting surface that is continuously coupled in surface-to-surface contact across the continuous planar mounting surface.

主权项

1. An initiator assembly comprising:
an initiator housing including an initiator cavity having a cavity cross sectional area; an explosive charge within the initiator cavity having a charge cross sectional area corresponding to the cavity cross sectional area; a bridge substrate within the initiator cavity, the bridge substrate including:
a substrate base including a uniform first planar surface, anda continuous planar mounting surface extending along the explosive charge, the continuous planar mounting surface includes first and second bridge contacts and the first planar surface, the first and second bridge contacts are substantially flush with the first planar surface, and the continuous planar mounting surface has a mounting surface cross sectional area corresponding to each of the charge cross sectional area and the cavity cross sectional area; a flyer plate within the initiator cavity and engaged along the continuous planar mounting surface; a barrel engaged along the flyer plate, the barrel faces the explosive charge and extends continuously outward from a barrel lumen to an initiator cavity wall of the initiator cavity; and wherein each of the continuous planar mounting surface, the explosive charge, the flyer plate and the barrel are in continuous surface-to-surface contact across the initiator cavity from the barrel lumen to the initiator cavity wall.