CARBON MONOXIDE SENSOR - MATSUSHITA ELECTRIC IND CO LTD

Title:

CARBON MONOXIDE SENSOR

Document Type and Number:

WIPO Patent Application WO/2001/025777

Kind Code:

A1

Abstract:

A carbon monoxide sensor with fast response, which prevents the gas to be detected from leaking into the atmosphere. The sensor comprises a proton conduction electrolyte film, two electrodes provided on the two sides of the proton conduction electrolyte film, a positive collector plate having a gas channel (67) with inlet and outlet and being in contact with the surface of one of the electrodes, a negative collector plate having a plurality of holes in contact with the surface of the other electrode, a DC power supply connected so that the positive collector plate may act as a positive plate and the negative collector plate may act as a negative plate, and current detection means for detecting current which varies depending on the concentration of carbon monoxide gas in hydrogen-containing gas to be detected that flows in the gas channel.

Inventors:

SHOJI RIHITO (JP)
KATSUKI NOBUHARU (JP)
IDA TAKASHI (JP)

Application Number:

PCT/JP2000/006740

Publication Date:

April 12, 2001

Filing Date:

September 29, 2000

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
SHOJI RIHITO (JP)
KATSUKI NOBUHARU (JP)
IDA TAKASHI (JP)

International Classes:

G01N27/407; G01N27/411; G01N33/00; (IPC1-7): G01N27/407

Foreign References:

US5573648A	1996-11-12
JPH0829390A	1996-02-02

Other References: