rini:speed_log_notes
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rini:speed_log_notes [2009/04/17 06:36] ben |
rini:speed_log_notes [2009/04/17 06:37] ben |
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| E.G. If we calibrate 1 n.m. at 2500 clicks (X=2500) and our sample/update period is 2 seconds (Z=2), and over that period we count 10 clicks (Y=10), then calculated speed would be (10/2500)/(2/3600) = S = 0.004 / 0.0006 = 6.67 knots. | E.G. If we calibrate 1 n.m. at 2500 clicks (X=2500) and our sample/update period is 2 seconds (Z=2), and over that period we count 10 clicks (Y=10), then calculated speed would be (10/2500)/(2/3600) = S = 0.004 / 0.0006 = 6.67 knots. | ||
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| + | Hopefully we get faster turn rates that 5 rotations per second, otherwise it won't be very precise. | ||
| </blockquote> | </blockquote> | ||
| + | |||
rini/speed_log_notes.txt ยท Last modified: 2011/04/11 09:20 by ben
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