Peshkov transducers of second sound

Journal Article · Thu Mar 31 23:00:00 EST 1988 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00115044· OSTI ID:6764003

Henjes, J; Liu, M

A system made up of a pair of Peshkov transducers situated at the opposite ends of a one-dimensional resonance cavity is investigated theoretically. Included are the dissipative effects of thermal diffusion and normal viscous slip through the superleak. Compared to the oscillating superleak transducer, there are two noteworthy differences: (1) The Peshkov transducer has more pronounced first-sound resonances at lower frequencies, complicating the interpretation. (2) Due to the separation of membrane and superleak, one can more easily reduce transducer dissipation, important in /sup 3/He and in /sup 4/He close to T/sub lambda/.

• Research Organization: Universitaet Hannover (West Germany)
• OSTI ID: 6764003
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 71:1-2; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY CONDITIONS
CAVITY RESONATORS
DAMPING
DIFFUSION
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUID FLOW
FLUIDS
FUNCTIONS
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LAMINAR FLOW
LEAKS
LIGHT NUCLEI
LOSSES
MATHEMATICAL MODELS
MEMBRANES
NUCLEI
ONE-DIMENSIONAL CALCULATIONS
QUANTUM FLUIDS
RESONANCE
RESONATORS
RESPONSE FUNCTIONS
SECOND SOUND
STABLE ISOTOPES
THERMAL DIFFUSION
TRANSDUCERS
VISCOUS FLOW