As a beginner in motor contol,
one of my motor systems consisted of Thorlab Z612B(0.4 nm/step, 8 micrometer blacklash) and Precision MicroControl DCX-PC100.
The motor was used in XY scanning; the x direction(fast axis) will move in small interval continuously in a y position (slow axis).
Normally, we use more than 32 by 32 data points.
In roughly thinking, the image shape of scanning should be a rectangular or squre type in XY surface depending on the ratio of each data points.
But, the returning X to the start point, or final X is shifting as time goes on, therefore parallelogram shape in XY surface. (please see the attachement. the number in micrometer)
Of course, I checked the complete of motion for each interval X, and then read the current position.
I had better notify we have already calibrated PID and motion(v & a) parameters by the tunning program.
Is the second problem related to whether Motor or Controller?
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02-27-2008 09:09 PM에 labmaster에 의해 편집되었음