Instruments and Experimental Techniques

, Volume 61, Issue 5, pp 751–752 | Cite as

A Controlled Magnetic Clamp

  • V. S. Edelman
Laboratory Techniques


A clamp for establishing a thermal contact between cryostat components in a vacuum is described. The contact is established by pressing heat conductors to each other using a permanent magnet and is broken or established by applying a current pulse of the required polarity to the winding around an iron magnetic core. The device is held in the open state by a second permanent magnet. Through the pressed contacts, a copper block with a mass of ∼600 g is cooled in the vacuum from the liquid-nitrogen temperature to the liquid- helium temperature within 4–5 h.


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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Kapitsa Institute of Physical ProblemsRussian Academy of SciencesMoscowRussia

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