摘要
光纤式涡轮流量计是一种应用前景广阔的流量测量装置。文中在分析光电频率信号处理方法的基础上,采用了FFT频谱分析法在LabVIEW软件中开发了仿真测试平台,通过仿真分析,验证了该方法在频率测量应用中具有抗干扰性强和高精度等优点;并进一步搭建了流量模拟测试系统进行实验,通过软硬件的结合,实验验证了该流量测试系统能够达到0.5%以上的测试精度。
Fiber turbine flowmeter has broad prospects in flow measurement .Based on the analysis of methods about photoe-lectric frequency signal processing , the FFT spectrum analysis method was adopted in this paper .And then, a simulation testing system was developed in the LabVIEW .The method was proved with strong anti-interference and high accuracy in frequency meas-urement by simulation analysis .Further , the flow experiment system was built by combining hardware and software .By means of experiment , it has been verified the accuracy of the flow measurement system can reach higher than 0.5%.
出处
《仪表技术与传感器》
CSCD
北大核心
2015年第11期56-58,104,共4页
Instrument Technique and Sensor
