Design and Experiment of Dual-U Tube Coriolis Mass Flowmeter

• Main Authors: Chung- Ching Chang, 張仲景
• Other Authors: Hsu-Jeng Liu
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/01680779841063957169

碩士 === 國立屏東科技大學 === 機械工程系 === 94 === The purposes of this research are analyzing, designing, and building a prototype of dual-U tube Coriolis mass flowmeter. First, we present the structure and the theory of the Coriolis mass flowmeter in the thesis, and utilize the finite element analysis method to carry out the U tube modal analysis and static analysis of maximum deformed displacement. After analyzing and designing, we build a dual-U tube Coriolis mass flowmeter. In the excitation frequency side, we use a electromagnetic actuator to produce the required voltage signal, then let this signal input drive coil, and the drive coil and magnet which fixed in the center of the dual-U tube will be magnetize to produce the excitation frequency. To measurement the signal by induction coil that is mounted at upstream and downstream flow of the tube, then we use LabVIEW Software to filter singal processing, we can measure the mass flow rate and signal analysis immediately. After we can find the error of the dual-U tube Coriolis mass flowmeter is only 0.95 percentages.