| 摘要 |
A detonator firing element which includes a miniature energy dissipation device located on a substrate which forms part of an integrated electronic circuit. An explosive or pyrotechnic compound is exposed to the effects of energy dissipated by the device. The device may be resistive, be formed by a semi-conductor device, or be a field effect device. The integrated circuit includes timing, testing, control, communication and interlock circuits to implement stand alone or computer controlled blast systems. Protection against over-voltages and induced currents is provided. Due to the integrated circuit approach power consumption is kept to a minimum and a detonator incorporating the firing element can be powered for a substantial time period by an energy storage device such as a capacitor. |
