基于ARM的多通道电荷放大器的设计与测试  

Development and Test of Multi-channel Charge Amplifier Based on ARM

作　　者：彭俊华[1] 吴义鹏[1] 裘进浩[1] 季宏丽[1] 王玉海[1] 

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室,江苏南京210016

出　　处：《压电与声光》2017年第2期211-215,共5页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(11372133);航空基金资助项目(2015ZD52);江苏省青年基金资助项目(BK20130791);中央高校基本科研业务费专项资金资助(NE2015001&NE2015101);南京航空航天大学机械结构力学及控制国家重点实验室自主研究课题资助项目(0515Y02);江苏高校优势学科建设工程资助项目

摘　　要：针对基于压电传感器的结构健康监测系统特别设计了一16通道的程控电荷放大器板卡,由嵌入式微控制芯片STM32F407IGT6进行板卡的功能和状态控制。程控电荷放大器板卡包含驱动传感选择模块、电荷转换模块、无源滤波模块、二级放大兼微调模块、带通滤波模块及USB传输模块等,满足研制的电荷放大器具备的各项功能,同时具有体积小及集成度高等优点。板卡与上位机直接通过USB串口进行通信,上位机用户界面基于LabVIEW软件进行开发。A 16-channel programmable charge amplifier board card for the structural health monitoring system based on the piezoelectric sensor was specially designed in this paper.The functions and working states controls of the module were carried out by the embedded microcontroller chip named STM32F407IGT6.The programmable charge amplifier board card includes a drive sensor selection module,a charge conversion module,apassive filter module,a two-stage amplifier and trimming module,a band-pass filter module,a USB transmission module,etc.These modules can satisfy the various functions of the developed charge amplifier and have the advantages of small size,high integration and so on.The board card can communicate with a PC through the USB serial port,while the user interface in the PC was developed based on the LabVIEW software.

关 键 词：电荷放大器 多通道 程控 ARM 结构健康监测 

分 类 号：TN722[电子电信—电路与系统] TP36[自动化与计算机技术—计算机系统结构]