, Volume 172, Issue 1-2, pp 162-174

A Continuously Operating, Flux Locked, Superfluid Interferometer

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Abstract

We report the characteristics of a flux locked, superfluid 4He interferometer that can continuously measure time-varying rotation rates. We describe the principles underlying the interferometer, including the dynamics of a superfluid chemical potential battery used to obtain continuous operation. We also discuss noise and drift issues and their possible amelioration.