I need to become an overnight expert in driving (smallish, DC) motors, with
particular emphasis on smoothness and control of the
acceleration/deceleration profile, for a mechatronics/robotics application.
I have a background in PID control, and analogue/power electronics, so I'm
not a total novice - but the sample rates I now need are orders of magnitude
higher than I have experience of. I also need very high resolution, probably
using absolute encoders (e.g. Stegmann/Hiperface et al).
I've tried, and failed, to find one or more killer reference books ("Dummies
Guide to Motion Control" or something ;)). I've googled and found *some*
material, but so far without the detail I need. Could any kind soul point me
at a source of detailed data on the subject?
One particular question - why do certain motor controllers need both an
encoder (for position) and a tacho (for speed) input to the control system?
Or is this only common when the final axis of rotation is > 360 degrees?
18 years ago