Nanopositioning: Why Parallel-Metrology is Better, by www.nanopositioning.net
Автор: Physik Instrumente USA - Precision Motion Control
Загружено: 2011-07-13
Просмотров: 2180
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Nanopositioning FAQ: https://www.pi-usa.us/en/tech-blog/pi... This parallel kinematics positioner with direct Parallel Metrology keeps all Motion Inside the Servo Loop Multi-Axis Measurements Relative to a Fixed Reference
Parallel kinematics facilitates implementation of Direct Parallel Metrology—measurement of all controlled degrees of freedom relative to ground. This is a more difficult design to build but it brings performance advantages with it.
The parallel-kinematics / parallel metrology system detects all motion in all controlled degrees of freedom and will respond to it, no matter where the motion was originated from (cross talk, external forces etc).
This means that all motion is inside the servo-loop resulting in superior multi-axis precision
More on precision positioning at http://www.pi-usa.us/products/index.php
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