摘要
设计并实现了一种基于DSP的压电晶体传感器数据采集系统。本系统将嵌入式技术与电子技术有机结合,按功能分为5个模块:多路电荷放大模块、DSP数据采集处理模块、USB2.0数据传输接口模块、USB驱动和应用程序模块。本系统应用电荷放大技术、信号处理技术、DSP、ARM和USB等技术成功地完成了对三维压电晶体传感器数据采集工作,同时本系统采用独特的设计方法提高了微电流信号检测精度,特别设计的信号处理算法显著提高了系统的抗干扰性能。应用结果表明,该采集系统运行稳定可靠,采集精度高,具有很高的实用价值。
In this thesis, the design of piezoelectric crystal sensor data acquisition system based on DSP is presented. The whole system is divided into five modules： multichannel charge amplifying module, DSP data acquisition and processing module, USB2.0 data transmission interface module, USB driver and application modules. The system uses charge amplifying technology, digital signal processing technology, DSP, ARM and USB2.0 technology, successfully accomplishes the piezoelectric crystal sensor data acquisition work, in addition, this system uses special technology to improve the micro--current signal detection accuracy and anti--jamming performance. The results showed that the acquisition system is stable, reliable and has a high acquisition accuracy, also, it has a high practical value.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第9期1848-1850,共3页
Computer Measurement &Control
