| 超声波流量计测流精度的实验研究 |
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| 引用本文： | 李智录,杨震,张东生.超声波流量计测流精度的实验研究[J].西安理工大学学报,2006,22(1):69-72. |
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| 作者姓名： | 李智录 杨震 张东生 |
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| 作者单位： | 1. 西安理工大学,水利水电学院,陕西,西安,710048
2. 西安水利建设工程总公司,陕西,西安,710068 |
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| 摘 要： | 为了检验超声波流量计的测流精度,特将国产的LCJ型与美国ORE公司的7500型两种超声波流量计进行对比实验。为此,建立了管道测流实验平台,在管道出口3.1 m处交叉安装了两对超声波传感器,进行了不同流量重复对比实验,并应用小波分析对实验数据进行分析比较。实验结果表明,国产LCJ型超声波流量计较美国ORE公司的7500型超声波流量计有更高的分辨率和测流精度,且操作简单。
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| 关 键 词： | 超声波流量计 时差法 计量精度 小波去噪 |
| 文章编号： | 1006-4710(2006)01-0069-04 |
| 收稿时间： | 2005-09-02 |
| 修稿时间： | 2005年9月2日 |
The Experiment Study of Ultrasonic Flowmeter Precision |
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| LI Zhi-lu,YANG Zhen,ZHANG Dong-sheng.The Experiment Study of Ultrasonic Flowmeter Precision[J].Journal of Xi'an University of Technology,2006,22(1):69-72. |
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| Authors: | LI Zhi-lu YANG Zhen ZHANG Dong-sheng |
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| Abstract: | In order to detect the flow velocity measurement precision of ultrasonic flowmeter,the contrast experiment is made of LCJ-type ultrasonic flowmeter made in China and 7500-type ultrasonic flowmeter made in America ORE.For this reason,a pipe flow measuring experiment platform or system is established.Two pairs of ultrasonic sensors are cross-installed at the 3.1 m (away) from the pipe outlet to carry out the repetition contrast experiments with different flows,and the wavelet analysis and comparison are made of the experiment data.The experimental results indicate that LCJ-type ultrasonic flowmeter made in China is of higher resolusion and more accurate flow velocity measurement than those of 7500-type ultrasonic flowmeter made in America ORE,also,being easy to operate. |
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| Keywords: | ultrasonic flowmeter time difference method measurement precision wavelet denoising |
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