I would like a motor system to control the position of a small laser diode and not being a technical experts in these areas would like some input and advice.
The requirements are:
- move smoothly at various speeds from 5deg/s to 60deg/s (no jitter)
- move accurately at all angles - it’s accuracy has to be finer than 1deg
- be able to change speeds (and preferably acceleration) during a movement.
- quiet to use, as our experiments are conducted in an anechoic chamber.
Currently i got my student to prototype and test an arudino + small servo.
At speeds > 100deg/s it has no problem. However, that’s too fast for our needs.
At the lower speeds there is too much jitter.
We prefer to use the arduino because our experimental software platform is Matlab, which can talk to the arduino already.
I have also looked at stepper motors with 0.9 degree/step accuracy but have not tried them.
What options are out there? Are stepper motors accurate/quite/smooth enough? or are Servos the way to go?
any advice/info appreciated.