Search Results - "Schmoranzer, D"
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1
Acoustic emission in bulk normal and superfluid 3He
Published in Applied physics letters (17-04-2023)“…We present measurements of the damping experienced by custom-made quartz tuning forks submerged in 3He covering frequencies from 20 to 600 kHz. Measurements…”
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2
The Use of Second Sound in Investigations of Quantum Turbulence in He II
Published in Journal of low temperature physics (01-11-2019)“…Starting from a historic perspective, we discuss the use of second sound in experimental investigations of quantized vorticity and quantum turbulence in the…”
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3
Cryogenic broadband vibration measurement on a cryogen-free dilution refrigerator
Published in Cryogenics (Guildford) (01-03-2019)“…•Vibration measurements up to 50 kHz performed on a dry dilution refrigerator.•Room temperature accelerometry at the top flange and cryogenic measurements at…”
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4
Visualization of a Coflow Jet in Superfluid Helium
Published in Journal of low temperature physics (15-07-2019)“…We present preliminary results of the visualization of a submerged coflow jet of liquid helium produced by a fountain pump. The jet propagating inside the bulk…”
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5
Quartz Tuning Fork: Thermometer, Pressure- and Viscometer for Helium Liquids
Published in Journal of low temperature physics (01-03-2007)“…Commercial quartz oscillators of the tuning-fork type with a resonant frequency of ∼ 32 kHz have been investigated in helium liquids. The oscillators are found…”
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6
Acoustic Emission by Quartz Tuning Forks and Other Oscillating Structures in Cryogenic 4He Fluids
Published in Journal of low temperature physics (01-06-2011)“…We report on experimental investigations of acoustic emission by quartz tuning forks resonating at frequencies 32 kHz, 38 kHz, 77 kHz and 100 kHz immersed in…”
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7
Measurements of Vortex Line Density Generated by a Quartz Tuning Fork in Superfluid \(4}\)He
Published in Journal of low temperature physics (01-05-2016)“…We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in…”
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8
On the Non-linear Damping of Mechanical Oscillators in Flows of 4He
Published in Journal of low temperature physics (01-04-2014)“…In the studies of both classical and quantum turbulence, significant attention is devoted to the investigation of the behavior of various submerged resonators…”
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9
Crosstalk Between Quartz Tuning Forks in Superfluid He II
Published in Journal of low temperature physics (01-05-2013)“…We present experimental results on crosstalk of non-electrical origin between high frequency quartz tuning forks immersed in the same volume of helium gas,…”
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10
Vibrating Quartz Fork—A Tool for Cryogenic Helium Research
Published in Journal of low temperature physics (01-02-2008)“…Oscillating objects such as discs, piles of discs, spheres, grids and wires have been widely used in cryogenic fluid dynamics and in quantum fluids research…”
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11
Cavitation in Liquid Helium Observed in a Flow Due to a Vibrating Quartz Fork
Published in Journal of low temperature physics (01-02-2008)“…A quartz fork vibrating at high amplitude is used to study cavitation in He I and He II along the saturated vapor pressure (SVP) curve and at slightly elevated…”
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12
Transition from laminar to turbulent drag in flow due to a vibrating quartz fork
Published in Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics (01-02-2007)“…Flow due to a commercially available vibrating quartz fork is studied in gaseous helium, He I and He II, over a wide range of temperatures and pressures. On…”
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13
Experiments relating to the flow induced by a vibrating quartz tuning fork and similar structures in a classical fluid
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-06-2010)“…We report on an experimental study of the behavior of a number of commercially available quartz tuning forks oscillating in a classical cryogenic fluid, in the…”
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14
Design evaluation of serial and parallel sub-mK continuous nuclear demagnetization refrigerators
Published in Cryogenics (Guildford) (01-09-2020)“…•Development of novel refrigerators for ultra-low temperatures.•Simulations of the performance of Continuous Nuclear Demagnetization Refrigerators.•Comparison…”
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15
Measurements of Vortex Line Density Generated by a Quartz Tuning Fork in Superfluid $$^{4}$$ 4 He
Published in Journal of low temperature physics (01-05-2016)Get full text
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16
Measurements of Vortex Line Density Generated by a Quartz Tuning Fork in Superfluid 4He
Published in Journal of low temperature physics (2016)“…We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in…”
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17
Design Evaluation of Serial and Parallel sub-mK Continuous Nuclear Demagnetization Refrigerators
Published 22-07-2020“…Cryogenics 110 (2020) 103119 We present the evaluation of two different design configurations of a two-stage PrNi$_5$ continuous nuclear demagnetization…”
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18
A low-frequency, high-amplitude, torsional oscillator for turbulence studies in quantum fluids
Published 20-01-2022“…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…”
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19
Cryogenic broadband vibration measurement on a cryogen-free dilution refrigerator
Published 16-11-2018“…This manuscript reports a set of acceleration measurements in the frequency range from 0 to 50 kHz performed at the mixing chamber plate (2 axes) and the top…”
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20
Thermal Radiation in Rayleigh-B\'{e}nard Convection Experiments
Published 15-01-2020“…Phys. Rev. E 101, 043106 (2020) An important question in turbulent Rayleigh-B\'{e}nard convection (RBC) is the effectiveness of convective heat transport,…”
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