[특허]Method of measuring a gas component and sensing device for measuring the gas component

Method of measuring a gas component and sensing device for measuring the gas component 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-027/41
출원번호	US-0681363 (1996-07-23)
우선권정보	JP-0083069 (1994-04-21); JP-0014598 (1995-01-31); JP-0048551 (1995-03-08); JP-0036753 (1996-02-23)
발명자 / 주소	Kato Nobuhide (Aichi-ken JPX) Nakagaki Kunihiko (Nagoya JPX)
출원인 / 주소	NGK Insulators, Ltd. (JPX 03)
인용정보	피인용 횟수 : 94 인용 특허 : 0

초록 ▼

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.

대표청구항 ▼

A method of measuring a concentration of NOx as a gas component of a measurement gas, comprising the steps of: introducing the measurement gas containing the NOx component from an external measurement-gas space into a first internal space under a first diffusion resistance; controlling an amount of oxygen in the measurement gas within said first internal space to produce an atmosphere which does not substantially affect measurement of the NOx component and which does not substantially decompose NO; introducing said atmosphere from said first internal space into a second internal space under a second diffusion resistance; and determining the concentration of NO present in the atmosphere in said second internal space by (i) contacting the gas in said second internal space with an NOx decomposition catalyst so as to disassociate oxygen from the NO and (ii) measuring the oxygen in said second internal space.

이 특허를 인용한 특허 (94)

Lawless, William N., Amperometric oxygen sensor.
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Method of measuring a gas component and sensing device for measuring the gas component 원문보기

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연구과제 타임라인

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Method of measuring a gas component and sensing device for measuring the gas component 원문보기

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