Hydrogen gas sensing using two type of pressure gauges

Atsushi Suzuki, Akira Kurokawa, Hidehiko Nonaka, Shingo Ichimura

Research output: Contribution to journalArticle

Abstract

For safety hydrogen sensing, the pressure measurement with a capacitance manometer and a quartz friction pressure gauge (Q-gauge) were investigated. Q-gauge pressure reading decreases when hydrogen gas is introduced into air supplied from atmosphere without any change of pressure measured by a capacitance manometer. This result indicates that the present pressure measurement using two pressure gauges is possible to detect the hydrogen leakage into air. In addition, a decrease of Q-gauge pressure reading correlates with a flow rate of the hydrogen gas, and increases with hydrogen concentration in air. Then it was shown that the low detection limit of hydrogen concentration is below 1%. Response time for hydrogen introduction is faster than 30 seconds, which meets the requirements for the hydrogen gas leak sensor. As above, the present safe pressure measurement using a capacitance manometer and a Q-gauge is satisfactorily useful for the hydrogen gas leak sensing.

Original languageEnglish
Pages (from-to)448-450
Number of pages3
JournalShinku/Journal of the Vacuum Society of Japan
Volume48
Issue number7
DOIs
Publication statusPublished - 2005 Jan 1
Externally publishedYes

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pressure gages
Pressure gages
Hydrogen
Gases
hydrogen
gases
Manometers
manometers
pressure measurement
Pressure measurement
Capacitance
capacitance
Gages
air
Air
Quartz
Leakage (fluid)
safety
leakage
friction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Cite this

Hydrogen gas sensing using two type of pressure gauges. / Suzuki, Atsushi; Kurokawa, Akira; Nonaka, Hidehiko; Ichimura, Shingo.

In: Shinku/Journal of the Vacuum Society of Japan, Vol. 48, No. 7, 01.01.2005, p. 448-450.

Research output: Contribution to journalArticle

Suzuki, Atsushi ; Kurokawa, Akira ; Nonaka, Hidehiko ; Ichimura, Shingo. / Hydrogen gas sensing using two type of pressure gauges. In: Shinku/Journal of the Vacuum Society of Japan. 2005 ; Vol. 48, No. 7. pp. 448-450.
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