摘要
光频域反射(OFDR)技术可用于发动机叶尖隙等快变微距的实时高精度测量与监测。分析了光频域反射测量系统的原理并设计了干涉光谱测量信号的实时解调算法,基于LABVIEW数据流图实现了测量系统信号实时解调和显控。通过试验验证了算法和显控平台功能可靠,可进行工程化应用推广。
Optical Frequency-Domain Reflectometry(OFDR)is appropriate for the measurement of rapid changing micro space quickly and high-accuracy especially for the turbine blade tip clearance.The principle of OFDR measurement system is analyzed and the real time demodulation algorithm of spectral interferometry signal is de?signed.Demodulating,displaying and controlling of the signals in real time from the measurement system are real?ized based on LABVIEW data flow diagram.Experiments show that the algorithm and LABVIEW platform function are reliable and available for engineering application.
作者
葛卉
崇博
GE Hui;CHONG Bo(Beijing Automation Control Equipment Institute,Beijing 100074,China)
出处
《光电技术应用》
2018年第4期35-39,共5页
Electro-Optic Technology Application
关键词
光频域反射
干涉光谱
解调算法
LABVIEW数据流图
optical frequency-domain reflectometry(OFDR)
interference spectrum
demodulation algorithm
LABVIEW data flow diagram
