Vibrating Quartz Fork—A Tool for Cryogenic Helium Research

Blažková, Michaela; Človečko, M.; Eltsov, V. B.; Gažo, E.; Graaf, R. de; Hosio, J. J.; Krusius, M.; Schmoranzer, David; Schoepe, Wilfried; Skrbek, L.; Skyba, P.; Solntsev, R. E.; Vinen, W. F.

doi:10.1007/s10909-007-9587-3

Cited by 69 publications

(52 citation statements)

References 23 publications

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“…At low drives, the velocity response v was proportional to the drive F D , taking the ''laminar'' form Subsequently, several groups have experimentally investigated the transition to turbulence in superfluids 4 He and 3 He-B by using grids, 31,[69][70][71][72] wires, [73][74][75][76][77] and tuning forks. 78) The details of the observations are described in a review article. 36) Although a detailed discussion of the cases of 4 He and 3 He at both low and relatively high temperatures is required, we shall next briefly describe a few important points.…”

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confidence: 99%

Quantum Turbulence

Tsubota

2008

J. Phys. Soc. Jpn.

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The present article reviews the recent developments in the physics of quantum turbulence. Quantum turbulence (QT) was discovered in superfluid 4 He in the 1950s, and the research has tended toward a new direction since the mid 90s. The similarities and differences between quantum and classical turbulence have become an important area of research. QT is comprised of quantized vortices that are definite topological defects, being expected to yield a model of turbulence that is much simpler than the classical model. The general introduction of the issue and a brief review on classical turbulence are followed by a description of the dynamics of quantized vortices. Then, we discuss the energy spectrum of QT at very low temperatures. At low wavenumbers, the energy is transferred through the Richardson cascade of quantized vortices, and the spectrum obeys the Kolmogorov law, which is the most important statistical law in turbulence; this classical region shows the similarity to conventional turbulence. At higher wavenumbers, the energy is transferred by the Kelvin-wave cascade on each vortex. This quantum regime depends strongly on the nature of each quantized vortex. The possible dissipation mechanism is discussed. Finally, important new experimental studies, which include investigations into temperaturedependent transition to QT, dissipation at very low temperatures, QT created by vibrating structures, and visualization of QT, are reviewed. The present article concludes with a brief look at QT in atomic BoseEinstein condensates.

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confidence: 99%

Quantum Turbulence

Tsubota

2008

J. Phys. Soc. Jpn.

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“…The tuning fork is a very sensitive detector (its quality factor Q could exceed 10 5 in 4 He at mK temperatures) capable of generating oscillatory flow on its own or it can be used as a sensing element in externally generated flows [19]. Its behavior and use is thoroughly described in [20,21], including a hydrodynamic model of the fork, therefore, on the following lines, a brief and simplified description will suffice.…”

Section: Introductionmentioning

confidence: 99%

Applications of the quartz tuning fork in classical and superfluid hydrodynamics

Schmoranzer

Mantia

Skrbek

2012

EPJ Web of Conferences

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“…Examples of such objects include spheres [2][3][4], wires [5][6][7][8][9][10] and grids [11][12][13]. Quartz tuning fork resonators [14][15][16] are the latest sensors to join this family of vibrating objects. They are quite small (∼ mm), and therefore convenient for use at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Mutual interactions between objects oscillating in isotopically pure superfluid 4He in the T → 0 limit

Garg

Ефимов

Giltrow

et al. 2012

Low Temperature Physics

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We report the results of experiments to explore interactions between physically separated oscillating objects in isotopically pure superfluid 4 He at T ∼ 10 mK. The investigations focused mainly on 32 kHz quartz tuning forks, but also consider a nearby 1 kHz oscillating grid. The low-drive linewidth (LDL) and resonant frequency f d of a detector fork were monitored while the maximum velocity of a transmitter fork, separated from the detector by a few mm, was varied over a wide range. Clear evidence was found for mutual interactions between the two forks, and for the influence of the grid on the forks. Monitoring the detector's LDL and f d provides evidence for a generator critical velocity in the range 0.3 < v c1 <1.0 cm/s for onset of the detector responses, in addition to a second critical velocity v c2 ∼ 13 cm/s probably corresponding to the production of quantum turbulence at the generator. The results are discussed, but are not yet fully understood. PACS: 67.25.dk Vortices and turbulence;47.27.Сn Transition to turbulence.

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Vibrating Quartz Fork—A Tool for Cryogenic Helium Research

Cited by 69 publications

References 23 publications

Quantum Turbulence

Quantum Turbulence

Applications of the quartz tuning fork in classical and superfluid hydrodynamics

Mutual interactions between objects oscillating in isotopically pure superfluid 4He in the T → 0 limit

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