A New Device for Studying Low or Zero Frequency Mechanical Motion at Very Low Temperatures

Physics

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https://doi.org/10.1007/s10909-011-0388-3
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Keywords

Superfluid, Mechanical oscillator, Hydrodynamics , Turbulence

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Research output: Contribution to Journal/Magazine › Journal article › peer-review

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A New Device for Studying Low or Zero Frequency Mechanical Motion at Very Low Temperatures. / Bradley, Ian ; Clovecko, Marcel; Fear, Matthew et al.
In: Journal of Low Temperature Physics, Vol. 165, No. 3-4, 11.2011, p. 114-131.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{ca815bf8dd32425aa05bbebf2ee3fc61,

title = "A New Device for Studying Low or Zero Frequency Mechanical Motion at Very Low Temperatures",

abstract = "We have developed a new {"}floppy wire{"} device for studying the motion through quantum fluids and solids at very low temperatures. The device is particularly well suited for producing large amplitudes of motion, for measuring drag forces at low frequency, and for studying {"}zero{"} frequency dynamics by measuring transient behavior. The device is very versatile and allows motion to be studied over a broad range of velocities and amplitudes. It generates negligible heat leaks and so is ideally suited for ultra low temperature experiments. The device has many potential applications in quantum fluids and solids research, including the study of drag forces at low frequencies in both the laminar and turbulent flow regimes, and the investigation of motion in (super)solid (4)He. We discuss the principles and modes of operation of the device and present some preliminary measurements in vacuum, in normal liquid (3)He and in superfluid (4)He. We also present measurements of a {"}floppy grid{"} device, which could be used for generating large volumes of quantum turbulence in superfluids at low temperatures.",

keywords = "Superfluid, Mechanical oscillator, Hydrodynamics , Turbulence",

author = "Ian Bradley and Marcel Clovecko and Matthew Fear and Shaun Fisher and A.M. Gu{\'e}nault and Richard Haley and Christopher Lawson and George Pickett and Roch Schanen and Viktor Tsepelin and Paul Williams",

year = "2011",

month = nov,

doi = "10.1007/s10909-011-0388-3",

language = "English",

volume = "165",

pages = "114--131",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "SPRINGER/PLENUM PUBLISHERS",

number = "3-4",

}

RIS

TY - JOUR

T1 - A New Device for Studying Low or Zero Frequency Mechanical Motion at Very Low Temperatures

AU - Bradley, Ian

AU - Clovecko, Marcel

AU - Fear, Matthew

AU - Fisher, Shaun

AU - Guénault, A.M.

AU - Haley, Richard

AU - Lawson, Christopher

AU - Pickett, George

AU - Schanen, Roch

AU - Tsepelin, Viktor

AU - Williams, Paul

PY - 2011/11

Y1 - 2011/11

N2 - We have developed a new "floppy wire" device for studying the motion through quantum fluids and solids at very low temperatures. The device is particularly well suited for producing large amplitudes of motion, for measuring drag forces at low frequency, and for studying "zero" frequency dynamics by measuring transient behavior. The device is very versatile and allows motion to be studied over a broad range of velocities and amplitudes. It generates negligible heat leaks and so is ideally suited for ultra low temperature experiments. The device has many potential applications in quantum fluids and solids research, including the study of drag forces at low frequencies in both the laminar and turbulent flow regimes, and the investigation of motion in (super)solid (4)He. We discuss the principles and modes of operation of the device and present some preliminary measurements in vacuum, in normal liquid (3)He and in superfluid (4)He. We also present measurements of a "floppy grid" device, which could be used for generating large volumes of quantum turbulence in superfluids at low temperatures.

AB - We have developed a new "floppy wire" device for studying the motion through quantum fluids and solids at very low temperatures. The device is particularly well suited for producing large amplitudes of motion, for measuring drag forces at low frequency, and for studying "zero" frequency dynamics by measuring transient behavior. The device is very versatile and allows motion to be studied over a broad range of velocities and amplitudes. It generates negligible heat leaks and so is ideally suited for ultra low temperature experiments. The device has many potential applications in quantum fluids and solids research, including the study of drag forces at low frequencies in both the laminar and turbulent flow regimes, and the investigation of motion in (super)solid (4)He. We discuss the principles and modes of operation of the device and present some preliminary measurements in vacuum, in normal liquid (3)He and in superfluid (4)He. We also present measurements of a "floppy grid" device, which could be used for generating large volumes of quantum turbulence in superfluids at low temperatures.

KW - Superfluid

KW - Mechanical oscillator

KW - Hydrodynamics

KW - Turbulence

UR - http://www.scopus.com/inward/record.url?scp=80055073728&partnerID=8YFLogxK

U2 - 10.1007/s10909-011-0388-3

DO - 10.1007/s10909-011-0388-3

M3 - Journal article

AN - SCOPUS:80055073728

VL - 165

SP - 114

EP - 131

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 3-4

ER -

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