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arXiv · 2201.08503

A low-frequency, high-amplitude, torsional oscillator for turbulence studies in quantum fluids

A. M. Gu'enault·P. V. E. McClintock·M. Poole·R. Schanen·V. Tsepelin·D. Zmeev·D. Schmoranzer·W. F. Vinen
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Abstract

We describe a new type of torsional oscillator, suitable for studies of quantum fluids at frequencies of $\sim$ $100$ Hz, but capable of reaching high velocities of up to several cm\,s$^{-1}$. This requires the oscillator amplitude to exceed $100$ $\mu m$, which is much too large for a conventional capacitor-driven device. We describe the new geometry for the oscillator, discuss its design, and report our initial tests of its performance.

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A. M. Gu'enault, P. V. E. McClintock, M. Poole, R. Schanen, V. Tsepelin, D. Zmeev, D. Schmoranzer, W. F. Vinen. 2022-01-21. A low-frequency, high-amplitude, torsional oscillator for turbulence studies in quantum fluids. https://arxiv.org/abs/2201.08503

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