Hard Drive RPM Control?

Question

Hard Drive RPM Control?

yapatel (Bioengineer)

(OP)

20 Feb 12 14:37

Trying to create a feedback system to read the hard drive RPM and then set the RPM to a specified value.

Any ideas on how to set the rpm of the drive?

IRstuff (Aerospace) · Answer 1 · 2012-02-20 15:44:30

for school?

TTFN
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yapatel (Bioengineer) · Answer 2 · 2012-02-20 15:45:48

Nope, trying to create a feedback system demo.

IRstuff (Aerospace) · Answer 3 · 2012-02-20 15:49:44

????

Wouldn't you compare the measured vs. desired and command the servo to increase or decrease the rate as appropriate?

TTFN
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MacGyverS2000 (Electrical) · Answer 4 · 2012-02-20 17:58:24

Feedback system demo for what? A hard drive system is not something anyone needs to work with at that level unless they're working on, well, hard drives...

Dan - Owner
http://www.Hi-TecDesigns.com

yapatel (Bioengineer) · Answer 5 · 2012-02-21 10:20:27

IRStuff - you're right but my question is how does one control the servo? I'm having a difficult time figuring that out.

IRstuff (Aerospace) · Answer 6 · 2012-02-21 11:41:10

Are you talking about trying to control the servo on an off-the-shelf HD? If so, then you're basically SOL, unless you know someone from the manufacturer. Even then, it's probably unlikely that the is a servo command, since there's generally no reason to change the speed.

TTFN
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krugtech (Industrial) · Answer 7 · 2012-06-20 12:12:27

there are programs available to modify the hard drive speed from some of the drive manufacturers under windows and there is SMART that gives info back.

Chris Krug http://krugtech.com/
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Hard Drive RPM Control?