华南地震
華南地震
화남지진
SOUTH CHINA JOURNAL OF SEISMOLOGY
2014年
3期
33-39
,共7页
CompactRIO%LabVIEW%强震动%数据采集%FPGA%锁相环%脉冲标定%I2C
CompactRIO%LabVIEW%彊震動%數據採集%FPGA%鎖相環%脈遲標定%I2C
CompactRIO%LabVIEW%강진동%수거채집%FPGA%쇄상배%맥충표정%I2C
CompactRIO%LabVIEW%Strong motion%Data acquisition%FPGA%PLL%Pulse calibration%I2C
提出以CompactRIO作为硬件平台，用LabVIEW FPGA技术实现48通道强震动数据采集器底层数据采集功能。详细阐述了设计要点及从技术上实现了时钟同步、数据采集、标定信号输出、量程设置、状态显示、外触发信号接入等功能。结果表明，数据采集器的噪声、动态范围、幅频响应等主要技术指标满足国内地震行业标准DB/T 10-2001的要求，数据采集器的线性度误差满足DB/T 22-2007的要求。实现的阶段成果能为人们利用NI产品进行强震动数据采集器开发提供重要参考。
提齣以CompactRIO作為硬件平檯，用LabVIEW FPGA技術實現48通道彊震動數據採集器底層數據採集功能。詳細闡述瞭設計要點及從技術上實現瞭時鐘同步、數據採集、標定信號輸齣、量程設置、狀態顯示、外觸髮信號接入等功能。結果錶明，數據採集器的譟聲、動態範圍、幅頻響應等主要技術指標滿足國內地震行業標準DB/T 10-2001的要求，數據採集器的線性度誤差滿足DB/T 22-2007的要求。實現的階段成果能為人們利用NI產品進行彊震動數據採集器開髮提供重要參攷。
제출이CompactRIO작위경건평태，용LabVIEW FPGA기술실현48통도강진동수거채집기저층수거채집공능。상세천술료설계요점급종기술상실현료시종동보、수거채집、표정신호수출、량정설치、상태현시、외촉발신호접입등공능。결과표명，수거채집기적조성、동태범위、폭빈향응등주요기술지표만족국내지진행업표준DB/T 10-2001적요구，수거채집기적선성도오차만족DB/T 22-2007적요구。실현적계단성과능위인문이용NI산품진행강진동수거채집기개발제공중요삼고。
By taking CompactRIO as hardware platform, and using LabVIEW FPGA technique, the paper bring about the bottom data acquisition function of 48 channel strong motion data acquisition. The paper elaborates the key points of design in detail, and technically realizes the function of clock synchronization, data acquisition, calibration signal output, range set, state show, external triggering signal access, etc. The results show that the recorderˊs main technical indicators, for example, noise, dynamic range, frequency response, etc, meet the domestic requirements of seismic industry standard DB/T 10-2001 and linearity error meets the DB/T 22-2007. The stage result realized can provide important reference for people who will develop strong motion data acquisition by use of NI products.
