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LIQUID HELIUM LEVEL DETECTOR.

DETECTEUR DE NIVEAU D'HELIUM LIQUIDE.

Author(s) : CHARRIER G., DUPONT H.

Type of article: Article

Summary

THE MEANS GENERALLY USED FOR MEASURING THE LEVEL OF LIQUID HELIUM ARE CAPACITANCE PROBES OR SUPERCONDUCTING PROBES GIVING AN ON-OFF SIGNAL. THE SIGNAL, GENERALLY ELECTRIC, IS PICKED UP AND TREATED BY ELECTRONIC UNITS AT THE AMBIENT TEMPERATURE WHERE THEY OPERATE THE ELECTRIC OR PNEUMATIC CONTROL OF A CONTROL VALVE, OF WHICH THE ACTIVE COLD ELEMENT (SEAT AND NEEDLE) CONTROLS THE REQUIRED SUPPLY FLOW RATE.

Details

  • Original title: DETECTEUR DE NIVEAU D'HELIUM LIQUIDE.
  • Record ID : 1985-0426
  • Languages: French
  • Source: Vide Couches minces - suppl. n. 221
  • Publication date: 1984/03
  • Document available for consultation in the library of the IIR headquarters only.

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