title: Metal foil gap switch and its electrical properties.
abstract: In order to reduce the volume of exploding initiator system, a metal foil spark gap switch was designed and fabricated using magnetron sputter deposition and standard microelectronic technology. The switch constitutes of two main electrodes and a trigger electrode, and stylus profiler was employed to ascertain dimension of the switch. We discussed the discharge characterization of the metal foil spark gap switch under nitrogen atmosphere and at pressure of 0.5 bars, 0.75 bars, 1.0 bar, 1.25 bars, 1.5 bars, and 1.75 bars, respectively. The relationship between self-breakdown voltage of the switch and pressure times distance corresponds to linearity. The switch had short delay time and low time jitter when the operating voltage was between 70% and 90% of its self-breakdown voltage. Compared with a commercial stereo spark gap switch, when it was fired by a conventional capacitive discharge unit, the firing circuit had lower inductance and higher resistance.
authors: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
authors: Junjun
authors: J
authors: Lv
authors: Qingxuan
authors: Q
authors: Zeng
authors: Mingyu
authors: M
authors: Li