2015 Fiscal Year Final Research Report
Development of a device for measuring small hydro power resources
| Project/Area Number |
25420125
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Ehime University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 流速測定 / 小水力エネルギー |
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| Outline of Final Research Achievements |
We developed a device that measured a flow velocity in a water channel by an acceleration sensor built in a smartphone, utilizing a property that an obstacle immersed in a flow vibrates with frequencies proportional to flow velocities. We found that a small flat plate as an obstacle with a width, height and thickness of 18, 54 and 1mm, respectively, had the proportional relationship under flow velocities between 0.3 and 1 m/s. We also made an application that adopted the maximum entropy method as a fast Fourier transform showing quick response．We tested our prototype device in an actual water channel and found that the errors compared with outputs of electromagnetic flow meter were within 10%.
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| Free Research Field |
流体工学
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