| Literature DB >> 24985863 |
Amir E Jahromi1, Dan F Sullivan1.
Abstract
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.Year: 2014 PMID： 24985863 DOI： 10.1063/1.4876483
Source DB: PubMed Journal: Rev Sci Instrum ISSN： 0034-6748 Impact factor: 1.523