Abstract
We demonstrate a helium-neon ring laser gyroscope with sufficient sensitivity and stability to directly detect the Chandler wobble of the rotating Earth. The successful detection of both the Chandler and the annual wobble is verified by comparing the time series of the ring laser measurements against the “C04 series” of Earth rotation data from the International Earth Rotation and Reference System Service.
- Received 19 August 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.173904
© 2011 American Physical Society
Synopsis
Earth Wobble Rings True
Published 20 October 2011
A laser gyroscope measures extremely low-frequency wobbles in the Earth’s rotation.
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