| 摘要 |
An electromagnetic pulse actuator system comprises a driver, a coil (154A), a source of stored charge defining a selected voltage adapted to produce a current through the coil (154A) when connected thereto, and control means for selectively connecting the stored charge to the coil (154A) to produce a current pulse in the coil (154A) of at least 1 millisecond. The driver comprises a copper plate (152A) and a sleeve (150A) which carries a rivit die (156A) and a drilling assembly (162A). The coil (154A) is positioned close to the copper plate (152A) so that each current pulse induces magnetic current in the plate (152A) which is thicker than one magnetic diffusion length of its copper material for the selected current pulse duration, and which is configured so that the current pulse in the coil (154A) can be produced by a relatively low voltage yet is sufficiently fast to produce a magnetic force pulse large enough to propel the driver forward with sufficient momentum to accomplish the desired impact work. |
