Signal Simulation Of Underwater Delay Explosions

This paper mainly studies the simulation of frequency spectrum of the signal of underwater explosion about different dose detonator, and designs the underwater hang fire exploder.According to the basic knowledge of underwater explosion and acoustics, utilizing the theoretic analysis, the characteristic of the frequency spectrum of signal of underwater explosion is analyzed through theoretic analysis. Emphatically utilizing the similarity theory and underwater explosion theory, the similarity criterion is obtained through dimension analytic method, thus with the frequency spectrum of the small dose detonator simulating the frequency spectrum of the great dose detonator is realized. The formula of energy flow density spectrum of the signal of underwater explosion is inferred through Flourier Transform, thus calculated value of the spectrum lever is obtained; Organizing underwater explosion experiment, analyzing the result of the experiment, and comparing the calculated value with the experiment value and the value obtained from using similar criterion, finally confirming the similar criterion accuracy.Besides, hang fire is designed using the single chip. Analyzing each part of the installment, programming with the assembly language and doing the Printed Circuit Board (PCB) . Designing the test experiment, confirming that the hang fire can satisfy the design request.