A piezoelectric cryogenic heat switch.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- The Review of scientific instruments
دوره 85 6 شماره
صفحات -
تاریخ انتشار 2014