A possible hydrogen sensing method with dual pressure gauges

A. Suzuki, A. Kurokawa, H. Nonaka, Shingo Ichimura

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this work, we present a novel method for hydrogen sensing, based on partial pressure measurements with a diaphragm and a quartz friction pressure gauge (D- and Q-gauges, respectively). The D-gauge measures absolute pressure, whereas Q-gauge readings are affected by viscosity changes occurring when hydrogen is mixed with air, thus enabling H 2 detection. The new method is safe and sensitive and has a quick-response to hydrogen leakage. The measured minimum detection limit for hydrogen is 0.05 vol.% in air, and the response time to hydrogen introduction is less than 1 s; these characteristics are practically sufficient for hydrogen sensing.

Original languageEnglish
Pages (from-to)37-40
Number of pages4
JournalSensors and Actuators, A: Physical
Volume127
Issue number1
DOIs
Publication statusPublished - 2006 Feb 28
Externally publishedYes

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Keywords

  • Hydrogen sensing
  • Partial pressure measurement
  • Quartz friction pressure gauge
  • Viscosity measurement

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

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