This thesis designed an eight - channel parallel data acquisition module based on vxibus , which is a fundamental module to set up a vxi test system 本論文主要設計了vxi總線8通道并行隔離a / d模塊,它是組建vxi測試系統的基本模塊。
The main contributions of the thesis are as following . firstly , the overall design scheme of the eight - channel parallel data acquisition module is determined 論文的主要工作如下: 1 .確定了vxi總線8通道并行隔離a / d模塊的總體設計方案。
The multichannel signal conditioners and amplifiers were developed to monitor superelastic wires embedded in structure , and 16 channels parallel data acquisition and processing system was set up . so , the experimental system was established and successfully used as structural health monit 研制完成用于超彈性傳感元件監測的多路微弱信號調理與放大儀,構建了16路并行數據采集與分析摘要博士論文儀,從而完成了結構健康監測的實驗系統,成功用于結構健康監測。
On the bases of the thorough comprehension to the vxibus specification and the multi - channel data acquisition system , and the deeply study to the basic principle and development trend of the vxibus data acquisition technology , the eight - channel parallel data acquisition module is developed 本文在對vxi總線規范和多通道并行數據采集系統的深入理解,以及對vxi總線數據采集技術的基本原理和發展趨勢作了深入細致研究的基礎上,完成了vxi總線8通道并行隔離a / d模塊的研制。
The serial a / d transformation and the channel isolation technology are adopted . eight - channel parallel data acquisition and test data time - sharing storage are realized . verilog hdl ( hardware description language ) is adopted to design the vxi register - based interface circuit and control circuit of each channel 以fpga ( fieldprogrammablegatearray )為控制核心,采用串行a / d變換器和通道隔離技術,實現了8通道并行采集和測試數據分時存儲功能,利用veriloghdl ( hardwaredescriptionlanguage )設計vxi寄存器基接口電路及各通道的控制電路。