An isolating circuit of explosive fragment speed measuring target net

Abstract

The present invention provides an isolation circuit for an explosive fragment speed measurement target net, including a first power supply, a second power supply, a first voltage converter, a second voltage converter, an isolation transformer, an isolation coupler, a signal processor, a target net and Subsequent speed measuring instrument; the first power supply and the first voltage converter form the first power supply line, the second power supply and the second voltage converter form the second power supply line, forming a dual power supply mode; the isolation transformer can reduce the strong electromagnetic interference pulse It is isolated and can withstand the impact of strong electromagnetic interference pulses, thereby protecting the first power supply line from being damaged by strong electromagnetic interference pulses; the front end of the isolation coupler is connected to the target net, and the front end of the isolation coupler can withstand strong electromagnetic interference pulses impact and can isolate strong electromagnetic interference pulses, thereby avoiding damage to the subsequent speed measuring instrument and the second power supply line connected to the rear end of the isolation coupler.

Description

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

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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