Simple liquid nitrogen level controller for use in open cryostat

Authors

  • Walter S. D. Folly Núcleo de Física, Universidade Federal de Sergipe

Keywords:

Liquid nitrogen, cryogenic, flip-flop, Schmidt-Trigger

Abstract

In this work, is described the construction of a simple but efficient level controller that operates keeping the level of liquid nitrogen stored in a cryostat between two fixed values. The system operation is based on the great variation of electrical resistivity of copper with respect the temperature and also on the hysteresis of a Schmidt-trigger flip-flop circuit.

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How to Cite

Folly, W. S. D. (2011). Simple liquid nitrogen level controller for use in open cryostat. Scientia Plena, 3(4). Retrieved from https://scientiaplena.emnuvens.com.br/sp/article/view/604

Issue

Vol. 3 No. 4 (2007): July|August/Julho|Agosto 2007

Section

Articles

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