高性能电荷放大器的设计与精编.docx

学号14112200182毕业设计(论文)题目: 高性能电荷放大器的设计与研究作者董招届别2015届院别信息与通信工程学院专业电子信息工程指导教师程望斌职称副教授完成时间2015年05月 18日摘要随着现代科学技术的飞速发展，电荷放大器在航空、航天、工业生产和智能通信等领域中得到了广泛应用。而传统的电荷放大器或多或少存在不足，很难满足实际应用要求，为此需研发出一种性价比较高、实用性较强的电荷放大器。文中对电荷放大器的各个组成模块进行详细阐述，其中系统硬件设计模块主要包含电荷-电压转换模块、归一化模块、滤波模块、电源模块、输出放大模块。并对压电加速传感器的基本理论、电荷放大器电路的等效电路进行了详细的分析说明，选用TL084四集成运算放大芯片进行电路设计。最后对电荷放大器进行了模拟实验，通过对实验数据的对比验证了电荷放大器的性能较好，证明了设计的可行性。因此，文中设计的电荷放大器具有一定的应用价值和社会价值。关键词：电荷放大器；压电加速传感器；测量电路；TL084AbstractWith the rapid development of modern science and technology, charge amplifier has been widely used inaviation, aerospaceindustrial productionandintelligent communication fields.And traditional charge amplifier has more or less some deficiencies, it is difficult to meet the requirements of practical application, therefore we need to develop a high performance price ratio and practical charge amplifier.This paper expounded the component module of charge amplifierin details, the module of the system hardware design mainly include charge to voltage conversion module, normalized module, filtering module, power module, the output amplifier module.After the detailed analysisof the basic theory of piezoelectric acceleration sensor, charge amplifier circuit of equivalent circuit, choosing the chip TL084, the four integrated operational amplifier chip for the design of circuit.Finally, making simulate experiment for the charge amplifier, the comparison of experimental data validating the charge amplifier with good performance, proved the feasibility of the design.Therefore, the design of charge amplifier has a certain application value and social value.Keywords：Charge amplifier; Thepiezoelectric acceleration sensor;Measurement circuit;TL084目录摘要IAbstractII第1章绪论11.1 课题研究背景11.2 国内外研究现状11.3 课题研究重点和思路3第2章压电式加速度传感器的理论介绍52.1 传感器的测量系统52.2 压电式加速度传感器的基本特性和工作原理52.3压电加速度传感器基本测量电路6第3章电荷放大器的整体硬件设计103.1 电荷放大器整体框图103.2 电荷放大器各个模块的设计103.2.1 电荷-电压转换模块的设计103.2.2 归一化电路的设计153.2.3 高通、低通滤波器的设计173.2.4 过载报警保护模块的设计203.2.5 电源模块的设计213.2.6 输出放大模块的设计22第4章电荷放大器的实验测试234.1