File:Dumas Neyrpic Current Meter.JPG
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Dumas_Neyrpic_Current_Meter.JPG (800 × 528 pixels, file size: 78 KB, MIME type: image/jpeg)
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DescriptionDumas Neyrpic Current Meter.JPG |
English: A Dumas Neyrpic water current meter with propeller, made in France. This horizontal-axis instrument is used for measuring water velocities between 0.2 and 2.4 metres/second. An array of these devices can be used for hydroelectric turbine flow measurements. A single device can be lowered on a wading rod and used to measure flow in a stream or an ocean current. The number of the revolutions of the propeller is proportional to water velocity and is counted electronically. This style of instrument has a cosine response to off-angle water currents. |
Date | |
Source | Own work |
Author | Wtshymanski |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:32, 27 August 2011 | 800 × 528 (78 KB) | Gauravjuvekar (talk | contribs) | erased portion remaining on bottom border left of the hand | |
12:30, 27 August 2011 | 800 × 528 (76 KB) | Gauravjuvekar (talk | contribs) | whitened small region remaining in top right corner | ||
12:27, 27 August 2011 | 2,000 × 1,320 (482 KB) | Gauravjuvekar (talk | contribs) | Whitened bckgrnd | ||
17:11, 9 March 2011 | 2,048 × 1,536 (647 KB) | Wtshymanski (talk | contribs) | {{Information |Description ={{en|1=A Dumas Neyrpic water current meter with propller, made in France. This instrument is used for measuring water velocities between 0.2 and 2.4 metres/second. An array of these devices can be used for hydroelectric tur |
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