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Lowest electrical noise type of motor for low speed applications
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ricko_uk:
Hi,
what type of DC motor (up to 12V) has the lowest inherent electrical noise (both transmission and emission)? I mean by design (i.e. without considering any shielding or filtering I might add later).

Ideally I am looking for a direct drive at a speed from 1 RPM to 200 RPM which I can control via a micro or a pot. If that's too low then I can use a gearbox. Load/torque is very minimal and not a concern and the same for acceleration/deceleration. I just need to rotate a light plastic plate.

Thank you
Benta:
If you have AC available, I'd say a shaded pole motor.

nfmax:
Would a clockwork motor be acceptable? They don't generally have much in the way of electrical noise
Benta:

--- Quote from: nfmax on May 23, 2020, 06:27:13 pm ---Would a clockwork motor be acceptable? They don't generally have much in the way of electrical noise

--- End quote ---

Those are normally shaded pole motors :)

nfmax:

--- Quote from: Benta on May 23, 2020, 06:37:55 pm ---
--- Quote from: nfmax on May 23, 2020, 06:27:13 pm ---Would a clockwork motor be acceptable? They don't generally have much in the way of electrical noise

--- End quote ---

Those are normally shaded pole motors :)

--- End quote ---

I mean a mechanical, spring-driven, wind-up motor. These are 'clockwork' in British English. A shaded-pole, or synchronous, AC motor would be OK, but you still have the possibility of mains-borne interference.
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