Speakers
Description
Solaris, located in Poland, is a relatively new synchrotron radiation centre in the region of central Europe. After the first launch of the accelerator and the conditioning period between end of 2015 and 2017, intensive development of the experimental beamlines has been taking place. These efforts have influenced the decision to enlarge the synchrotron’s experimental hall in order to provide an additional space for future beamlines. Heavy construction equipment working in the close vicinity of the existing experimental hall generates ground vibrations that are being transmitted to the building foundations and synchrotron slab. This not only affects sensible research infrastructure, but also survey and metrology instrumentation. During a regular beamline alignment process with the use of laser tracker, a vibration of the instrument body was observed without specialized equipment. In order to assess the influence of vibrations on laser tracker measurement accuracy, a dedicated test stand was set up. It consisted of a laser tracker atop a tripod with accelerometers placed on the stand and on the floor. Vibration data was recorded along with tracker measurements being performed to a control point. The tests were carried out for two particular states: vibrations generated by excavation works outside of the building and background vibrations without the influence of construction works. Each time, three different profiles for the laser tracker were used, varying in measurement time. The results with a conclusion for the experiment have been presented on the poster.
