Research On Testing Technology Of Martyrdom Test Based On

With the rapid development of the world’s military science and technology, the output of explosive materials is rising, such as gunpowder, detonator. Explosion of these materials often leads to sympathetic detonation, and brings on continuous devastating damage. The Stimulation dose and safe distance of the occurrence of sympathetic detonation want to be evaluated quantitatively, the reasonable destructive testing must be carried out to obtain and analyze the relevant test data. Therefore, it has a great practical value to do research on the test technology of sympathetic detonation and design the test device of sympathetic detonation.In this paper, the phenomenon of sympathetic detonation and the test technology have been thoroughly analysised and researched, and the current domestic and foreign research status of vibration, shock wave and fragment has been analyzed. Besides, a set of sympathetic detonation test system has been designed, which applys to directly test three parameters of the pressure of shock wave, the acceleration of module and the velocity of fragments, combined with the technology of storage measurement and fragment velocity test. The test system is divided into two subsystems of storage tester and fragment velocity tester. The designed system of storage tester uses FPGA as the core controller, and is equipped with high speed ADC, large capacity FLASH and USB communication interface circuit on the hardware platform. Besides, the control logic of AD conversion, FLASH operation and USB communication, etc, has been designed. On the other hand, the Nios II soft-core has been formed, the control program has been written and PC software has been developed base on MFC. At the same time, the hardware circuit and the hardware logic have been completed for the design of fragment velocity tester. The detail of design plan and design process of the two subsystems is given in this paper.In the end, the two subsystems designed in this paper are debugged and tested by simulation analysis and experiments to verify the functions and technical indexes. Experimental results show that the system designed in this paper has the advantages of large storage capacity, high data transmission speed, high timing resolution and low power consumption. It has a good application prospect.