Method of measuring a gas component and sensing device for measuring the gas component
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United States of America Patent
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Sep 30, 1997
Grant Date -
N/A
app pub date -
Jul 23, 1996
filing date -
Apr 21, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A method and a sensing device of measuring a concentration of a gas component of a measurement gas, which method includes the steps of: introducing the measurement gas containing the gas component, from an external measurement-gas space into a first internal space, under a diffusion resistance; controlling an amount of oxygen in the measurement gas within the first internal space, so as to produce an atmosphere which does not substantially affect measurement of the gas component and which does not convert the gas component; introducing the atmosphere from the first internal space into a second internal space, under a diffusion resistance; and measuring the concentration of the gas component present in the atmosphere in the second internal space.
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Patent Citation Ranking
- 98 Citation Count
- G01N Class
- 98.22 % this patent is cited more than
- 28 Age