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Hi,
I'm working right now on a control system that moves an aperture from 0 --> 30 degrees based on feedback from an optical angle sensor. The actuator that I'm planning to use is a voice coil motor, since it has to move the aperture quickly, from rest to fully on in under 15ms.
What I need to know is what information about the voice coil would I need to know in order to design the control system? How can I setup a transfer function for a voice coil motor? I have researched motors from BEI Magnetics, and they list on their datasheet a mechanical time constant. How does this mechanical time constant compare to that spec'd for a DC motor?
Any information you can provide would be appreciated.
Thank-you for your time,
Ivan Blackford
I'm working right now on a control system that moves an aperture from 0 --> 30 degrees based on feedback from an optical angle sensor. The actuator that I'm planning to use is a voice coil motor, since it has to move the aperture quickly, from rest to fully on in under 15ms.
What I need to know is what information about the voice coil would I need to know in order to design the control system? How can I setup a transfer function for a voice coil motor? I have researched motors from BEI Magnetics, and they list on their datasheet a mechanical time constant. How does this mechanical time constant compare to that spec'd for a DC motor?
Any information you can provide would be appreciated.
Thank-you for your time,
Ivan Blackford