舰船电子工程2024，Vol.44Issue(1)：70-75,6.DOI:10.3969/j.issn.1672-9730.2024.01.014
基于FPGA的高精度振动采集传输系统
High Precision Vibration Acquisition and Transmission System Based on FPGA
李东星 1荣刚 2穆克强 3任勇峰 3贾兴中3
作者信息
- 1. 北京航天长征飞行器研究所 北京 100048
- 2. 中国运载火箭技术研究院 北京 100071
- 3. 中北大学仪器科学与动态测试教育部重点实验室 太原 030051
- 折叠
摘要
Abstract
In order to meet the needs of vibration monitoring in different parts of an aircraft during flight and complete re-al-time acquisition of multi-channel vibration signals,this paper proposes a design scheme of high-precision vibration acquisition and transmission system based on FPGA.First,the conditioning circuit is designed to regulate the charge signal output by the sensor to the acquisition range.Secondly,the analog switch is used to switch the 12 acquisition channels,and the 16-bit high-precision ADC is used to realize the analog-to-digital conversion.Finally,FPGA is used to control the whole acquisition and transmission pro-cess.The digital data is framed,packaged,cached and sent to the protection memory through the Ethernet interface for data storage.The test shows that the data reliability is high.When the single sampling rate is 20 kSPS and the measurement range is±2000g,the acquisition accuracy of the vibration signal can reach±0.5%.关键词
振动信号/FPGA/模数转换/以太网Key words
vibration signal/FPGA/analog to digital conversion/ethernet分类
信息技术与安全科学引用本文复制引用
李东星,荣刚,穆克强,任勇峰,贾兴中..基于FPGA的高精度振动采集传输系统[J].舰船电子工程,2024,44(1):70-75,6.
