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http://dx.doi.org/10.3795/KSME-B.2016.40.10.629

Development of Acid Resistance Velocity Sensor for Analyzing Acidic Fluid Flow Characteristics  

Choi, Gyujin (Dept. of Advnaced Electronic Circuit Substrate, Chungnam Nat'l Univ.)
Yoon, Jinwon (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Yu, Sangseok (Dept. of Mechanical Engineering, Chungnam Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.40, no.10, 2016 , pp. 629-636 More about this Journal
Abstract
This study presents the development of an acid resistance velocity sensor that is used for measuring velocity inside a copper sulfate plating bath. First, researchers investigated the acid resistance coating to confirm the suitability of the anti-acid sensor in a very corrosive environment. Then, researchers applied signal processing methods to reduce noise and amplify the signal. Next, researchers applied a pressure-resistive sensor with an operation amplifier (Op Amp) and low-pass filter with high impedance to match the output voltage of a commercial flowmeter. Lastly, this study compared three low-pass filters (Bessel, Butterworth and Chebyshev) to select the appropriate signal process circuit. The results show 0.0128, 0.0023, and 5.06％ of the mean square error, respectively. The Butterworth filter yielded more precise results when compared to a commercial flowmeter. The acid resistive sensor is capable of measuring velocities ranging from 2 to 6 m/s with a 2.7％ margin of error.
Keywords
PCB; Acid Resistance; Velocity Sensor; Signal Processing; Active Filter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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