A piezoelectric cryogenic heat switch | Zendy

Amir E. Jahromi | Zendy; Dan Sullivan | Zendy

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A piezoelectric cryogenic heat switch

Author(s) -

Amir E. Jahromi,

Dan Sullivan

Publication year - 2014

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4876483

Subject(s) - piezoelectricity , conductance , materials science , thermal conductivity , cryogenics , thermal , heat pipe , optoelectronics , thermodynamics , composite material , heat transfer , condensed matter physics , physics

We have measured the thermal conductance of a mechanical heat switch actuated by a piezoelectric positioner, the PZHS (PieZo electric Heat Switch), at cryogenic temperatures. The thermal conductance of the PZHS was measured between 4 K and 10 K, and on/off conductance ratios of about 100-200 at lowest and highest measures temperature were achieved when the positioner applied its maximum force of 8 N, respectively. We discuss the advantages of using this system in cryogenic applications, and estimate the ultimate performance of an ideal PZHS.

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