Measuring RPM of a small motor
Measuring RPM of a small motor
(OP)
Hi!~
It's too small to measure RPM with a optical tachometer.
Is there any method to get RPM of a small motor?
Thanks in advance...
It's too small to measure RPM with a optical tachometer.
Is there any method to get RPM of a small motor?
Thanks in advance...





RE: Measuring RPM of a small motor
Link to a variety of small hand held tachometers and tach sensors:
http://www.reliabilitydirect.com/tachometerproduct...
RE: Measuring RPM of a small motor
Perhaps you could look at the drive current with a scope, or analyse the nosie it makes?
Cheers
Greg Locock
RE: Measuring RPM of a small motor
if it is really small and turning slowly, use a stop watch...
RE: Measuring RPM of a small motor
RE: Measuring RPM of a small motor
I've got a mechanical rotation counter in my toolbox. It is made by Starrett. It comes with several different sized small rubber couplings that you hold against the shaft. Run it for a fixed amount of time and do the division and you get the speed. You can probably find one at a tool dealer.
Timelord
RE: Measuring RPM of a small motor
m777182
RE: Measuring RPM of a small motor
If it's not clear from that, unbalance it slightly, then try again!
RE: Measuring RPM of a small motor
RE: Measuring RPM of a small motor
May be you can try this software, it works 30 days in demo mode.
http://www.esser.u-net.com/rpm.htm
It uses sound card and microphone.