摘要
通过检测分析飞机发动机滑油。能够反映发动机运行状态。文中设计基于Xilinx Spartan-6系列FPGA芯片的ECT(electricall capacitance tomography)检测系统。采用DDRΠ存储器和USB总线技术,显著提高了数据传输的速度。同时应用数字正交解调代替模拟解调,有效提高了解调实时性和系统精度。仿真实验结果表明:该系统处理速度快、工作稳定、采样精度高,能满足实际测量需要。
The engine working condition can be reflected through testing and analysis of aircraft engine lubricating oil.An ECT（electrical capacitance tomography） detection system based on a Xilinx Spartan-6 FPCA chip was designed in this paper.DDR II memory and USB bus technology were utilized.At the same time application of digital orthogonal demodulation to replace analog demodulation can improve the demodulation real-time and accuracy of system.The simulation experiment show that the system possesses the advantages of stability and reliablitiy,high sampling accuracy and fast processing speed,thus meeting needs in practical measurements.
出处
《仪表技术与传感器》
CSCD
北大核心
2015年第9期50-52,共3页
Instrument Technique and Sensor
基金
国家自然科学基金项目(61401466
61102096)
中央高校基本科研业务费中国民航大学专项项目(3122013C007)
中国民航大学科研启动基金项目(2013QD01S)
关键词
滑油检测
ECT
航空发动机
DDRⅡ
正交解调
lubricating oil detection
ECT
aero engine
DDR Ⅱ
orthogonal demodulation
