good work and idea, i found out working on my own mpmm motors that once the rotor was spinning that the magnets/stator at the right moment in the field could produce a huge effect on the rotor for just a little effort. adminonduty is working as well in your similar direction. keep brainstorming...
Use the short throw to move the short end of a lever. Thus the long end of the lever will have a greater movement. The Sub woofer should have more than enough for a 10:1 I would think.
I tried using mechanical advantage to pivot the stator, but its mass overwhelms the tiny speaker, and the overall response is very damped at very low freqs -- not crisp at all.
The good news is that as the rotor speed increases, the required arc length decreases (i.e. less than 5 degrees), so the next step is to try this at a higher rotor speed and frequency.
Remember you can leverage the voice coils power to amplify the necessary distance needed to oscillate the stator. With that you should be able to easily reproduce the effect.
The subwoofer cost only $9.00, and has a very limited throw -- maybe 10 mm total. A larger subwoofer with a longer throw is what I'll be trying next -- in addition to tangential pivoting of the stator.
good work and idea, i found out working on my own mpmm motors that once the rotor was spinning that the magnets/stator at the right moment in the field could produce a huge effect on the rotor for just a little effort. adminonduty is working as well in your similar direction. keep brainstorming...
variablestatus 3 years ago
Use the short throw to move the short end of a lever. Thus the long end of the lever will have a greater movement. The Sub woofer should have more than enough for a 10:1 I would think.
AdminOnDuty 4 years ago
I tried using mechanical advantage to pivot the stator, but its mass overwhelms the tiny speaker, and the overall response is very damped at very low freqs -- not crisp at all.
The good news is that as the rotor speed increases, the required arc length decreases (i.e. less than 5 degrees), so the next step is to try this at a higher rotor speed and frequency.
Yada ..
Yadaraf15 4 years ago
Good! Now thats thinking outside the speaker :)
Remember you can leverage the voice coils power to amplify the necessary distance needed to oscillate the stator. With that you should be able to easily reproduce the effect.
AdminOnDuty 4 years ago
The subwoofer cost only $9.00, and has a very limited throw -- maybe 10 mm total. A larger subwoofer with a longer throw is what I'll be trying next -- in addition to tangential pivoting of the stator.
Cheers :)
Yada..
Yadaraf15 4 years ago