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Helium II level measurement techniques.

Author(s) : CELIK D., HILTON D. K., ZHANG T., et al.

Type of article: Article

Summary

In this paper, a survey of cryogenic liquid level measurement techniques applicable to superfluid helium (He II) is given. The survey includes both continuous and discrete measurement techniques. A number of different probes and controlling circuits for this purpose have been described in the literature. They fall into one of the following categories: capacitive liquid level gauges, superconducting wire liquid level gauges, thermodynamic (heat transfer-based) liquid level gauges, resistive gauges, ultrasound and transmission line-based level detectors. The present paper review these techniques and their suitability for He II service. In addition to these methods, techniques for measuring the total liquid volume and mass gauging are also discussed.

Details

  • Original title: Helium II level measurement techniques.
  • Record ID : 2003-0595
  • Languages: English
  • Source: Cryogenics - vol. 41 - n. 5-6
  • Publication date: 2001/05

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