| 一种新型数字式均速管流量计的研究 |
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| 引用本文： | 丁艳青,莫德举.一种新型数字式均速管流量计的研究[J].北京化工大学学报(自然科学版),1998,25(4):60-64. |
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| 作者姓名： | 丁艳青 莫德举 |
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| 作者单位： | 北京化工大学自动化系 |
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| 摘 要： | 提出了一种检测均速管流量计信号的新方法，并采用以ＮＥ５５５振荡器为核心的检测线路对其输出信号进行了检测。通过实验数据与理论分析，证实了这种新型传感器具有良好的重复性与可靠性，并采用ＰＩＣ系列微处理器对该传感器的二次仪表做了设计开发。
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| 关 键 词： | 均速管 流量计 振荡系统 静压力测量 |
Research of a new kind of digital averaging velocity tube flowmeter |
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| Institution: | (Department of Automation,Beijing University of Chemical Technolodgy,Beijing,100029) |
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| Abstract: | The proposes a new method to detect the signal of the a averaging velocity tube flowmeter. The output signal is detected by using an oscillating system which is composed of NE555 oscillator. Experiments and analysis show that its repeatability are reliability are perfect. The secondary device of this sensor is also designed and developed, employing a new series of microprocessor PIC which makes the hardware compact. |
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| Keywords: | averaging velocity tube flowmeter oscillating system pressure measurement |
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