Speaker
Description
Direct measurements through glass windows with a Laser Tracker onto reflectors installed within a cryostat are not readily possible. Nevertheless these kind of measurements were investigated to accomplish the given requirements.
The high precise monitoring requirements regarding deformations of the cold mass along with movements vs. cryostat of superconducting components in 3D were initially the trigger for this investigation. Relative as well as absolute coordinates between reference points in known coordinate systems are essential for these evaluations. The aim is to develop a robust alternative measurement concept compared to our existing method with theodolite in order to evaluate these displacements of the components.
Considering the whole measurement method as a complex system all parameters needs to be taken into account. In this case, not only physical parameters of the environment, the Laser Tracker itself as well as of the glass window, but also the consequences in terms of the stochastic mathematical model need to be studied carefully.
