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http://dx.doi.org/10.3795/KSME-B.2012.36.12.1217

Development of Wall Flow Sensor Using Micro Imaging Device  

Lee, Seung Hwan (Graduate School of Mechanical Engineering, Gyeongsang Nat'l Univ.)
Kim, Byung Soo (Research Center for Aircraft Parts Technology, Gyeongsang Nat'l Univ.)
Kim, Hyoung-Bum (Research Center for Aircraft Parts Technology, Gyeongsang Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.12, 2012 , pp. 1217-1222 More about this Journal
Abstract
A wall flow sensor has been used for feedback flow control and wall shear stress measurement. In this study, we developed a new wall flow sensor by combining the PIV algorithm and the micro image sensor used in an optical mouse. The feasibility of the wall flow sensor was investigated by using simulated fluid flow experiments. Compared with the quadrature signal from imaging devices, the accuracy of the wall flow velocity measurement was improved and the dynamic range increased. In addition, the depth information of particles was also measured by using the defocusing imaging technique.
Keywords
Micro Imaging Sensor; PIV; Defocusing Imaging;
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