Reducing process noise in superconducting helium liquid level probes

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Description

This memo presents methods to reduce the process noise accompanying the use of superconducting helium liquid level probes in a splashing environment. The development of these methods followed unsatisfactory operation of unmodified, commercially available, level probes used in each of the 24 valve box dewars of Tevatron refrigerators. The dewars function both as reservoirs of refrigeration and as phase separators at the inlet of the cold compressors used in subatmospheric magnet cooling operation.

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7 p.

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Brubaker, J. March 1, 1995.

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Description

This memo presents methods to reduce the process noise accompanying the use of superconducting helium liquid level probes in a splashing environment. The development of these methods followed unsatisfactory operation of unmodified, commercially available, level probes used in each of the 24 valve box dewars of Tevatron refrigerators. The dewars function both as reservoirs of refrigeration and as phase separators at the inlet of the cold compressors used in subatmospheric magnet cooling operation.

Physical Description

7 p.

Notes

INIS; OSTI as DE95008956

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  • Other Information: PBD: Mar 1995

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  • Other: DE95008956
  • Report No.: FNAL-TM--1929
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/41383 | External Link
  • Office of Scientific & Technical Information Report Number: 41383
  • Archival Resource Key: ark:/67531/metadc676481

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • March 1, 1995

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • April 1, 2016, 6:54 p.m.

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Brubaker, J. Reducing process noise in superconducting helium liquid level probes, report, March 1, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc676481/: accessed July 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.