Patent application number | Description | Published |
20090139877 | COMPOSITION FOR USE IN A NOX ELECTRODE, METHOD OF MAKING THE SAME, ARTICLES DERIVED THEREFROM, AND METHOD OF DETECTING NOX - Disclosed herein is a composition for use in a NOx electrode comprising: | 06-04-2009 |
20090241653 | EXHAUST GAS SENSING SYSTEM AND METHODS FOR SENSING CONCENTRATIONS OF EXHAUST GAS CONSTITUENTS - Exhaust gas sensing system and methods for sensing concentrations of exhaust gas constituents are provided. The exhaust gas sensing system includes a NO | 10-01-2009 |
20090260987 | METHOD OF MAKING GAS SENSOR ELEMENT, AND GAS SENSOR DERIVED THEREFROM - Disclosed herein is a method of making a gas sensor element, comprising calcining a NOx sensor electrode material at a NOx sensor electrode material calcination temperature of about 1200 to about 1600° C. to form a calcined NOx sensor electrode material, disposing the calcined NOx sensor electrode material on a substrate to form a substrate comprising a NOx sensor electrode, and firing the substrate comprising the NOx sensor electrode at a gas sensor element firing temperature to form a gas sensor element comprising a NOx sensor electrode. Also disclosed is a gas sensor comprising the gas sensor element. | 10-22-2009 |
20090266142 | Systems and Methods for Sensing an Ammonia Concentration in Exhaust Gases - Systems and methods for determining an NH | 10-29-2009 |
20090301878 | AMMONIA SENSOR ELEMENT, METHOD OF MAKING THEREOF, AND AMMONIA SENSOR DERIVED THEREFROM - Disclosed herein is an ammonia sensor element comprising an ammonia selective sensor electrode, a reference electrode, a solid electrolyte in ionic communication with the ammonia selective sensor electrode and the reference electrode, and a protective layer disposed on the ammonia selective sensor electrode, comprising a porous portion comprising an ammonia-inert material. A method of making an ammonia gas sensor element comprises disposing an ammonia selective sensor electrode on and in ionic communication with a solid electrolyte, disposing a reference electrode on and in ionic communication with the solid electrolyte, and disposing a protective layer comprising a porous portion comprising an ammonia-inert material on the ammonia selective sensor electrode. | 12-10-2009 |
20100032292 | AMMONIA GAS SENSOR - A single-cell sensor element is configured for ammonia gas sensing. The sensor includes an electrolyte layer, an NH | 02-11-2010 |
20100032318 | SYSTEM AND METHOD FOR AMMONIA AND HEAVY HYDROCARBON (HC) SENSING - A gas measurement system includes a sensor element and an associated electronic control unit (ECU) or the like connected thereto for receiving sensor element emf outputs. The ECU is configured to provide output signals or parameters indicative of ammonia and heavy HC gas concentrations. The sensor element has an NH | 02-11-2010 |
20100077833 | EXHAUST GAS SENSOR AND METHOD FOR DETERMINING CONCENTRATIONS OF EXHAUST GAS CONSTITUENTS - An exhaust gas sensor and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensor includes a NO | 04-01-2010 |
20100084269 | Sensor Material and Gas Sensor Element and Gas Sensor Derived Therefrom | 04-08-2010 |
20100161242 | EXHAUST GAS SENSING SYSTEM AND METHOD FOR DETERMINING CONCENTRATIONS OF EXHAUST GAS CONSTITUENTS - An exhaust gas sensing system and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensing system includes a NH | 06-24-2010 |
20100282618 | AMMONIA GAS SENSORS WITH VANADIUM-BASED SENSING ELECTRODE - An ammonia gas sensor is disclosed that includes a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The ammonia sensing electrode comprises vanadium silicide, vanadium oxysilicide, vanadium carbide, vanadium oxycarbide, vanadium nitride, or vanadium oxynitride. | 11-11-2010 |
20100282619 | AMMONIA GAS SENSORS WITH LANTHANIDE VANADATE SENSING ELECTRODE - An ammonia gas sensor is disclosed that includes a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The ammonia sensing electrode comprises an oxide material characterized by the formula | 11-11-2010 |
20120158313 | Method and Device for Characterization and Sensing of Exhaust Gas and Control of Engines and Components for Aftertreatment of Exhaust Gases - A method and device allow the determination of the concentrations of a plurality of gas species in a gas mixture based on the output signals from a plurality of gas sensors, each of which is sensitive to a plurality of gas species in the gas mixture. The method includes measuring the response of each sensor at a number of levels of each gas in the mixture, determining a mathematical representation of the response characteristics of each sensor, and using the mathematical representation to determine gas concentrations from sensor readings. | 06-21-2012 |
20120234077 | METHOD AND APPARATUS FOR IDENTIFYING GAS SENSOR FAULTS - A method for fault identification of gas sensors exposed to a gas mixture is disclosed for gas sensors having an output that depends on concentrations of two gas species in the gas mixture. The method includes receiving output signals from two such sensors, processing the output signals in a controller that implements a model of the sensors so as to identify a fault in the first gas sensor or the second gas sensor; and providing an indication of any identified faults. | 09-20-2012 |