Voice coils

Robotics and electronics discussion Mechanical design and actuators
1

A “voice coil” is a type of linear actuator. It pushes or pulls when you apply a voltage to it. The voice coil gives a force that is proportional to the current in its electric coil. To repeat, this type of actuator gives a force, not primarily a velocity or position.

Some references:

Design and Control of a Voice Coil Actuated Robot Arm …
by John McBean, Mechanical Engineering Masters thesis, 2004.

Basics of Voice Coil Actuators
by Bill Black, et al in PCIM Power Electronics Systems, July 1993.

Voice-coil actuators
by George Gogue & Joseph Stupak, G2 Consulting.

2

Hello.

I think you were asking a question in your post originally, but it looks like you changed it now. Did you figure out the answer to what you were asking?

-Ken

3

Yes, thanks.

It looks like the Jrk 21v3 (Pololu #1394) motor controller with feedback can be used to control the voice coil I had in mind.

4

You can find some additional information http://www.h2wtech.com/category/voice-coil-actuators.