In this video we review the basic definitions of resolution, accuracy, and repeatability.
These parameters fundamentally impact the complexity, cost, and development time of a motion system. Understanding them can help you meet your requirements for performance, without adding unnecessary cost and time to market.
- First, we discuss position resolution, often called precision, and the difference between open-loop and closed-loop resolution.
- Second, we mention accuracy. In practice, this is the least important of the three terms. This is because calibration can improve accuracy up to the limits of the system’s resolution and repeatability.
- Finally, we demonstrate the difference between uni-directional and bi-directional repeatability and explain why it matters.
- Read deeper: open-loop vs. closed-loop positioning
- Learn more about what’s inside an M3 module: M3 Motion Modules integrate a motor, mechanics, and drive electronics. They have small size with with high resolution and repeatability. When embedded into precision instruments, they reduce development time for instrument designers.
- Browse the linear stages, actuators and rotary stages in the M3 Module line.