基于SOPC的超声波流体测量系统研究与实现  

Research and implementation of ultrasonic fluid measurement system based on SOPC

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作  者:叶海兵 孙国丽 YE Haibing;SUN Guoli(Huaxin Consulting and Designing Institute Co.,Ltd.,Hangzhou 310052,China)

机构地区:[1]华信咨询设计研究院有限公司,杭州310052

出  处:《自动化与仪器仪表》2024年第11期256-258,265,共4页Automation & Instrumentation

摘  要:为了解决传统的超声波流量测量电路复杂、测量精度不高的问题,提出了基于SOPC的超声波流体测量系统。SOPC系统是整个系统的核心,在测量中引入管道截面的平均流速的概念,通过流场修正系数对线平均流速进行补偿,提高了测量精度。测量结果表明,本系统重复性好,在流速大于10 m/s时,相对误差小于1%。本系统具有硬件结构简单,成本低,体积小可在线升级的优点,具有较强的实用价值。In order to solve the problems of complex circuit and low measurement accuracy of traditional ultrasonic flow measurement,an ultrasonic fluid measurement system based on SOPC is proposed.The SOPC system is the core of the whole system.The concept of the average velocity of the pipe section is introduced in the measurement,and the linear average velocity is compensated by the flow field correction coefficient,which improves the measurement accuracy.The measurement results show that the system has good repeatability,and the relative error is less than 1% when the flow rate is greater than 10(m·s~(-1)).The system has the advantages of simple hardware structure,low cost,small size and online upgrade,and has strong practical value.

关 键 词:SOPC 超声波 流体测量 时差法 

分 类 号:TP273[自动化与计算机技术—检测技术与自动化装置]

 

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