弹丸膛内运动存储测试装置的开发硬件部分
关键词 金属风暴武器 存储测试 信号调理
毕业论文设计说明书外文摘要
Title The development of device for the test and storage of the motion parameters in the bore of the projectile-the hardware part
Abstract
Accurate measurement of the Metal Storm Weapon projectile acceleration and the top and bottom pressure provides effective technical means and data support for the development and evaluation of the Metal Storm Weapon, as while as the analysis modeling of interior ballistic movement characteristics.
Based on the above parameters, this paper proposes the overview scheme of the storage test.
The system consists of six parts including sensors, signal conditioning, AD acquisition, microcontroller, batteries and high-strength shell. And select PVDF piezoelectric pressure sensor and acceleration sensor according to the characteristics of the measured object; moreover, the system designs charge amplifier and low pass filter circuit for signal conditioning, and uses chip AD7324 for AD conversion and data acquisition. The data will be collected in the FLASH of STM32.
PC gets the data through serial port and then give an analysis and display of the data. The design uses Altium Designer software to design circuit diagram of the system and make PCB. The results of the circuit debugging show that the designed memory test circuit can complete the functions required in the task book.
Keywords Metal Storm weapon Signal conditioning Storage Test
目次
1 绪论 1
1.1 课题研究背景及意义 1
1.2 弹丸膛内运动参数测试的国内外研究现状 2
1.3 存储测试的国内外现状 2
1.4 论文的主要研究内容 3
2参数存储测试系统总体方案设计 4
2.1 测试系统的技术指标 4
2.2 测试方案的制定 4
2.2.1 系统电路方案设计 4
2.2.2装置的外壳保护层设计 5
2.3测试系统关键技术分析 5
2.3.1.电荷信号调理技术 5
2.3.2 AD数据采集技术 5
2.3.3 触发技术 6
2.4 本章小结 6
3 存储测试系统模拟部分硬件电路设计 7
3.1 传感器的选择 7
3.2 信号调理电路的设计 8
3.2.1信号调理的目的 8
3.2.2 电荷放大器的设计 9
3.3 低通滤波器的设计 11
3.4 AD转换器的设计 12
3.4.1 A/D选型 12
3.4.2 SPI模式概述 12
3.4.3 A/D转换电路的设计 13