Difference between revisions of "CSC231 Hard-Disk Arduino Project: some numbers"
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Latest revision as of 18:38, 8 October 2010
--D. Thiebaut 16:24, 1 December 2008 (UTC)
Some data for rotation of 3.5" hard disk with a 1/4" slit in it.
5400.000 rotations per minute (rpm)
90.000 rotations per second (rps)
0.011 sec per rotation
11.111 ms per rotation
3.500 inches diameter for disk
10.996 inches in circumference
0.125 inches slot in disk
0.011 portion of rotation when slit is above detector
0.126 ms when slit is above detector
