Giant telescope GREGOR follows the sun with a Triamec Servo-Drive
On September 1, 2020 the Leibniz Institute for Solar Physics (KIS) published new, extremely detailed images of the solar surface, also thanks to a servo drive from Triamec.
Before that, the KIS team had re-built Europe's largest solar telescope on Tenerife from scratch: "In just one year, we completely redesigned the optics, mechanics and electronics to achieve the best possible image quality," said Dr. Lucia Kleint, who is leading the project.
A 100kHz ultra-precision servo drive from Triamec, together with a high-precision positioning drive from Schüssler Technik of Pforzheim, Germany, moves the derotator, which corrects image rotation during acquisition. The derotator is a key element in the chain of lenses, mirrors and mechatronic elements that makes the new, higher resolutions possible.
The stick-slip effects during slow motion (typically <0.0008rad/s) can only be compensated with an extremely fast and stiff control as offered by the Triamec TSD.