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A New Method for Flow Rate Measurement in Millimeter-Scale Pipes
State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China
* Authors to whom correspondence should be addressed.
Received: 19 November 2012; in revised form: 10 January 2013 / Accepted: 14 January 2013 / Published: 25 January 2013
Abstract: Combining the Capacitively Coupled Contactless Conductivity Detection (C4D) technique and the principle of cross correlation flow measurement, a new method for flow rate measurement in millimeter-scale pipes was proposed. The research work included two parts. First, a new five-electrode C4D sensor was developed. Second, with two conductivity signals obtained by the developed sensor, the flow rate measurement was implemented by using the principle of cross correlation flow measurement. The experimental results showed that the proposed flow rate measurement method was effective, the developed five-electrode C4D sensor was successful, and the measurement accuracy was satisfactory. In five millimeter-scale pipes with different inner diameters of 0.5, 0.8, 1.8, 3.0 and 3.9 mm respectively, the maximum relative difference of the flow rate measurement between the reference flow rate and the measured flow rate was less than 5%.
Keywords: flow rate measurement; Capacitively Coupled Contactless Conductivity Detection; cross correlation flow measurement; millimeter-scale pipes
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Cite This Article
MDPI and ACS Style
Ji, H.; Gao, X.; Wang, B.; Huang, Z.; Li, H. A New Method for Flow Rate Measurement in Millimeter-Scale Pipes. Sensors 2013, 13, 1563-1577.
Ji H, Gao X, Wang B, Huang Z, Li H. A New Method for Flow Rate Measurement in Millimeter-Scale Pipes. Sensors. 2013; 13(2):1563-1577.
Ji, Haifeng; Gao, Xuemin; Wang, Baoliang; Huang, Zhiyao; Li, Haiqing. 2013. "A New Method for Flow Rate Measurement in Millimeter-Scale Pipes." Sensors 13, no. 2: 1563-1577.