Explosion fragment speed measurement target net isolation circuit

Abstract

The invention provides an explosion fragment speed measurement target net isolation circuit, comprising a first power source, a second power source, a first voltage converter, a second voltage converter, an isolation transformer, an isolation coupler, a signal processor, a target net and a follow-up speed measurement instrument, wherein the first power supply and the first voltage converter form a first power supply line, and the second power supply and the second voltage converter form a second power supply line, so a dual-power-supply mode is formed; the isolation transformer can isolate strong electromagnetic interference pulse and can bear the impact of the strong electromagnetic interference pulse, so the first power supply line is protected from being damaged by the strong electromagnetic interference pulse; and the front end of the isolation coupler is connected with the target net, and the front end of the isolation coupler can withstand the impact of the strong electromagnetic interference pulse and can isolate the strong electromagnetic interference pulse, so a subsequent speed measuring instrument and a second power supply line connected with the rear end of the isolation coupler can be prevented from being damaged.

Description

technical field [0001] The invention belongs to the design field of explosion fragment speed measuring instruments, in particular to an explosion fragment speed measuring target net isolation circuit. Background technique [0002] In the daily ammunition explosion test, not only a large number of high-speed flying ammunition fragments will be produced in the process, but also a large area of ​​flames, huge shock waves and strong electromagnetic interference will be mixed. These factors have a great impact on the collection of ammunition explosion data. Influence. Among them, when testing the speed of the explosion fragments, the target net is usually stood in the explosion field, the fragments act on the target net, and then the target net outputs the signal of the fragments passing the target to the subsequent speed measuring equipment to complete the analysis. The net cannot avoid the impact of explosion products. In addition to the fragment velocity information, the frag...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings and deficiencies of the prior art, a target net isolation circuit for explosive fragment speed measurement is provided, which can solve the problem that a large number of strong electromagnetic interference pulses generated in the explosion fragment speed measurement test destroy the power supply and subsequent speed measurement instruments

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