引信用时钟电路抗冲击性能试验技术研究
时间:2018-07-21 10:24 来源:毕业论文 作者:毕业论文 点击:次
| 摘要引信是起爆控制和弹药安全的核心,其作用成败直接决定了武器系统与目标对抗的成败。引信在发射和飞行过程中都将承受很大的过载，特别是侵彻引信在侵彻过程中承受的过载高达几万甚至二十几万G。引信在高过载、高冲击的过程，极易导致引信电路的损坏导致引信失去作用。为确保在高冲击、高过载环境下侵彻引信时钟电路的可靠性，必须对引信用时钟电路进行抗冲击性能试验。本文对模拟高过载冲击环境下时钟电路抗冲击性能试验技术进行研究。利用单片机计数器对引信时钟电路进行频率检测，同时利用加速度传感器采集冲击加速度，从而获得冲击过程中振荡电路频率的变化曲线和加速度曲线，为分析和评价振荡电路的抗冲击性能提供数据支持。主要进行了电路设计，完成PCB制作，完成了单片机程序编写与调试，并通过试验验证了设计原理和方案的正确性，可以用于对不同种类的振荡电路进行抗冲击性能试验。25986 关键词： 高过载 晶振 电路设计 试验仿真 毕业论文设计说明书外文摘要 Title Experimental study on the impact resistance of Fuze clock circuit Abstract The fuse is the key point about controlling the safety of ammunition and the control of the detonation,it directly determines the success or failure between the weapon system and the target confrontation.Lots of loads will be taken during the process of launch and flight , especially during the penetration process,the loads which penetration fuses bore will high to thousands of or even tens of thousands of G.Fuses are easily broken in the situation of high overload,high impact ,and finally the fuse may ineffective.In order to ensure the reliability of the fuse in the occasion of high impacts and high overloads,Clock circuit 0f fuse must be take to test in the credit shock resistance tests.In this paper, the simulation clock circuit high overload shock environment impact resistant performance test technology are studied.Using the microcontroller to test the pulses of the circuit crystals from fuses,and then we use the A/D system to shift the acceleration collected.To obtain the oscillation circuit frequency change curve and acceleration curve in the process of impact.for the data support of the impact resistance analysis and evaluation of the oscillation circuit.I designed a Circuit ,made PCB，wrote the procedure about the microcontroller and verified the correctness of principles and schemes in the simulation experiment.I conducted a test of impact resistance performance of different kinds of crystal. Keywords The high overload Crystal oscillator Circuit design Experimental simulation 目 次 1 绪论 1 1.1研究背景及意义 1 1.2侵彻过载测试系统工作原理 1 1.3冲击试验装置的国内外研究现状 2 1.3.1冲击试验机 2 1.3.2 HoPkinson压杆 3 1.3.3空气炮 4 1.3.4马希特击锤 5 1.3.5空气击锤 6 1.4本文的主要工作 6 2 时钟电路抗冲击试验技术方案 7 2.1 时钟电路及其抗冲击性能分析 7 2.1.1 RC振荡电路 7 2.1.2石英晶体振荡器 7 2.1.3 Silicon Labs Si504 9 2.2试验方案 9 2.2.1试验装置 10 2.2.2夹具及试件装置 10 2.2.3加速度传感器 11 2.2.4 单片机系统概述 11 (责任编辑：qin) |