基于相关算法超声流量计的研究

为解决开采原油的精确在线计量问题,在对超声波相关流量计原理分析的基础上,重点研究了超声波相关流量算法。采用循环相关算法,有效克服了有限长离散数据线性相关算法所出现的计算失效问题,并以DSP芯片为核心,实现了超声波相关流量测量系统的设计,完成了信息不丢失测量以及对困难流体流量的非接触在线计量。实验方案经油田现场测试,计量误差可以控制在2%以内。

Research on Ultrasonic Flowmeter Based on Correlation Algorithm

To solve the problem of the exact measurement online in exploitation of crude oil,the ultrasonic flow-related algorithms on the basis of the analysis of ultrasonic flowmeter is explored.Discrete Data on a limited long-linear correlation algorithm failures arising from the calculation,using circular correlation algorithm,computational examples show that the results can be no failure,application of technology for frame design,DSP architecture based on the no loss of measurement information and on non-contact ...