论文标题
低频，高振幅，扭转振荡器，用于量子流体的湍流研究
A low-frequency, high-amplitude, torsional oscillator for turbulence studies in quantum fluids
论文作者
论文摘要
我们描述了一种新型的扭转振荡器，适用于$ \ sim $ $ 100 $ Hz的量子流体研究，但能够达到高达几个CM \，S $^{ - 1} $的高速速度。这需要振荡器幅度超过$ 100 $ $μm$，这对于传统电容器驱动的设备来说太大了。我们描述了振荡器的新几何形状，讨论其设计，并报告我们对其性能的初步测试。
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 $100$ $μm$, 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.
