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An accurate differential pressure gauge for use in liquid and gaseous helium

Authors
Journal
Cryogenics
0011-2275
Publisher
Elsevier
Publication Date
Volume
38
Issue
6
Identifiers
DOI: 10.1016/s0011-2275(98)00028-9
Keywords
  • B. Helium Gas
  • B. Helium Liquid
  • D. Pressure Sensor
Disciplines
  • Design

Abstract

Abstract We have developed and calibrated an accurate pressure gauge studying the flow of liquid or gaseous helium. The gauge is designed to make measurements of pressure drops in liquid helium flow experiments but could be used for a broad range of other purposes. The gauge is calibrated over a range of pressures from 0 to 200 Pa and can resolve pressures as small as 0.01 Pa. It is accurate to better than 0.5% of the reading or ±0.01 Pa, whichever is greater, and maintains this accuracy even after warm up and cool down.

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