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2 results

  • Preface

  • Ulrich Schreiber, Technische Universität München, Jon-Paul Wells, University of Canterbury, Christchurch, New Zealand
  • Book:
    Rotation Sensing with Large Ring Lasers
    Published online:
    02 February 2023
    Print publication:
    09 February 2023, pp xi-xvi

  • Summary

    This preface of the book provides the driving motivation for the development of ultra-stable and highly sensitive inertial rotation sensing for applications in the geosciences. It identifies the exact observation of the rotation rate and the orientation of the rotation axis of the Earth as the important connecting link between the terrestrial reference frame and the long-term-stable celestial reference frame. The former is important because we navigate in this frame, while the latter is the frame in which navigation satellite motion is defined. With the precise knowledge of Earth rotation, one can transform from one reference frame to the other. At this point in time, space geodesy still awaits a self-contained continuously observing high resolution inertial sensor for this demanding task. Large ring laser gyroscopes are currently the only promising technique for this task.

Rotation Sensing with Large Ring Lasers
  • Applications in Geophysics and Geodesy
  • Ulrich Schreiber, Jon-Paul Wells
  • Published online:
    02 February 2023
    Print publication:
    09 February 2023
  • Ring lasers are commonly used as gyroscopes for aircraft navigation and attitude control. The largest ring lasers are sensitive enough that they can be used for high resolution inertial rotation sensing of the Earth in order to detect tiny perturbations to the Earth's rotation caused by earthquakes or global mass transport. This book describes the latest advances in the development of large ring lasers for applications in geodesy and geophysics using the most sensitive and stable devices available. Chapters cover our current knowledge of the physics of the laser gyroscope, how to acquire and analyse data from ring lasers, and what the potential applications are in the geosciences. It is a valuable reference for those working with ring lasers or using the data for applications in geodesy and geophysics; as well as researchers in laser physics, photonics and navigation.