Reconstruction of the Instantaneous Earth Rotation Vector with Sub-Arcsecond Resolution Using a Large Scale Ring Laser Array
André Gebauer, Monika Tercjak, Ulrich Schreiber, Heiner Igel, Jan Kodet, Urs Hugentobler, Joachim Wassermann, Felix Bernauer, Chin‐Jen Lin, Stefanie Donner, Sven Egdorf, A. Simonelli, Jon‐Paul R. Wells
Abstract
Absolute rotation rate sensing with extreme sensitivity requires a combination of several large scale gyroscopes in order to obtain the full vector of rotation. We report on the construction and operation of a four-component, tetrahedral laser gyroscope array as large as a five story building and situated in a near surface, underground laboratory. It is demonstrated that reconstruction of the full Earth rotation vector can be achieved with sub-arcsecond resolution over more than six weeks.
Topics & Concepts
Rotation (mathematics)Earth's rotationPhysicsRing laser gyroscopeGyroscopeLaserOpticsImage resolutionResolution (logic)Scale (ratio)Remote sensingComputer scienceGeologyAstronomyArtificial intelligenceQuantum mechanicsGeophysics and Sensor TechnologySeismic Waves and AnalysisHigh-pressure geophysics and materials