Sensor and method for detecting oxides of nitrogen

PCT No. PCT/SE94/01050 Sec. 371 Date Jul. 24, 1996 Sec. 102(e) Date Jul. 24, 1996 PCT Filed Nov. 8, 1994 PCT Pub. No. WO95/13533 PCT Pub. Date May 18, 1995The present invention relates to a sensor for detection of oxides of nitrogen forming part of a gas, including a substrate consisting of a solid...

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Hauptverfasser:	HJORTSBERG, OVE, ARLIG, ULF, LUNDGREN, STAFFAN
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TESTING
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Zusammenfassung:	PCT No. PCT/SE94/01050 Sec. 371 Date Jul. 24, 1996 Sec. 102(e) Date Jul. 24, 1996 PCT Filed Nov. 8, 1994 PCT Pub. No. WO95/13533 PCT Pub. Date May 18, 1995The present invention relates to a sensor for detection of oxides of nitrogen forming part of a gas, including a substrate consisting of a solid electrolyte on which a conductive pattern is arranged which includes at least two parts forming an anode and a cathode, a current being produced in the sensor in the presence of oxides of nitrogen and the anode and the cathode being connected to an external voltage source which is adapted to drive the current and to means for measuring the current, which constitutes a measure of the concentration of oxides of nitrogen in the gas. The sensor is adapted to generate the current by means of a transport of oxygen ions in the sensor which essentially originates from oxides of nitrogen being part of the gas, independently from the content of oxygen in the gas.