| 虚拟仪器流量测试的精度研究 |
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| 引用本文： | 杨志刚,刘兆妍,雷振山. 虚拟仪器流量测试的精度研究[J]. 传感器与微系统, 2004, 23(8): 22-24 |
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| 作者姓名： | 杨志刚 刘兆妍 雷振山 |
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| 作者单位： | 1. 河北理工学院,自动化系,河北,唐山,063009
2. 唐山学院,机电工程系,河北,唐山,063000 |
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| 摘 要： | 为了提高应用虚拟仪器进行流量测量的精度,分析了流量传感器的工作原理;比较了采用模拟输入、计数器输入和使用缓冲区的计数器输入三种不同的测试技术方案。在实验的基础上,应用误差理论分析测试数据证明:在LabVIEW环境中使用缓冲区技术进行计数器编程,各种以电脉冲发信的流量传感器的测量精度可以提高0.6%以上。
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| 关 键 词： | 虚拟仪器 流量测量 测量精度 |
| 文章编号： | 1000-9787(2004)08-0022-03 |
| 修稿时间： | 2004-03-02 |
Research of accuracy of flow measurement with virtual instrument |
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| YANG Zhi-gang,LIU Zhao-yan,LEI Zhen-shan. Research of accuracy of flow measurement with virtual instrument[J]. Transducer and Microsystem Technology, 2004, 23(8): 22-24 |
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| Authors: | YANG Zhi-gang LIU Zhao-yan LEI Zhen-shan |
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| Affiliation: | YANG Zhi-gang~1,LIU Zhao-yan~1,LEI Zhen-shan~2 |
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| Abstract: | In order to improve the accuracy of flow measurement with virtual instrument,the principle of flow sensor is analyzed,and three test methods-analog input,counter and buffered counter are examined.Based on experiments,using the theory of error to analyze test data,it is proved that,the measurement accuracy of flow sensor which based on pulse can be improved about 0.6 percent by the technique of buffered programming counter in LabVIEW. |
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| Keywords: | virtual instrument flow measurement measurement accuracy |
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