An electric detonator electromagnetic pulse sensitivity measuring device

Abstract

The invention provides a device for measuring electromagnetic pulse sensitivity of an electric detonator, which includes a pulse source, a first current-limiting power resistor, a second current-limiting power resistor, and a switch; the pulse source includes capacitors C1-C2n, and the capacitors C1-C2n are divided into two Each group includes n capacitors connected in parallel, and the two groups of capacitors are connected in series. One end of the capacitor group connected in series is connected to the first current-limiting power resistor, and the other end of the first current-limiting power resistor is used as the electromagnetic pulse sensitivity measurement device. The positive electrode is used to connect the electric detonator under test; the first current-limiting power resistor is connected to the anode of the switch, and the cathode of the switch is connected to the second current-limiting power resistor, and the other end of the second current-limiting power resistor is used as the electromagnetic pulse sensitivity measurement The negative electrode of the device is used to connect to the electric detonator under test; a certain distance is kept between the anode and the cathode of the switch, and the connection is triggered by the trigger electrode. The device can measure the ignition threshold of the electric detonator in the standard electromagnetic pulse (rising edge<=20ns, pulse width 500ns).

Description

technical field [0001] The invention provides a device for measuring electromagnetic pulse sensitivity of an electric initiator, which belongs to the field of electromagnetic compatibility in aerospace transporters in aerospace systems. Background technique [0002] The high-altitude electromagnetic pulse (HEMP) has a large electric field amplitude, a wide range of action, and a wide spectrum distribution. It can be coupled into electronic systems or equipment through various channels, interfere with the normal operation of the system, and cause performance degradation or even damage to the system or equipment. Therefore, It has attracted increasing attention in recent years. [0003] At present, the military standards of various countries, including GJB1579 "General Specifications for Electric Explosion Subsystems of Electric Initiation" and GJB2304 "Safety Requirements and Test Methods for Electric Explosion Subsystems of Aerospace Vehicle Systems" require that electric ex...

AI Technical Summary

Problems solved by technology

The device can measure the ignition threshold of the electric detonator under the standard electromagnetic pulse (rising edge<=20ns, pulse width 500ns), and is used to solve the problem that the ignition threshold of the electric detonator cannot be measured under the electromagnetic pulse at present.

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