Patent application number | Description | Published |
20100236924 | LIQUID ELECTROLYTE COMPOSITION AND ITS USE IN GAS SENSORS - A liquid electrolyte composition obtainable by combining a first component comprising bistrifluoromethanesulfonimide and/or an analogue thereof with a second component comprising a dialkyl sulfone, diaryl sulfone, alkyl aryl sulfone, alkyl acyl sulfone, boric acid, alkyl boronic acid, aryl boronic acid, dialkyl phosphite, trialkyl phosphite, dialkyl phosphate, trialkyl phosphate, alkylene carbonate, alkanoic lactone, preferably alkanoic γ-lactone an analogue of any of these, or mixtures thereof, wherein any of the alkyl, aryl of alkenyl groups may be substituted or unsubstituted. The liquid electrolyte is used in an electrochemical gas sensor. | 09-23-2010 |
20100252455 | METHODS OF OPERATION OF ELECTROCHEMICAL GAS SENSORS - A method of operating an electrochemical gas sensor includes:
| 10-07-2010 |
20100288652 | APPARATUS AND METHOD OF REGENERATING ELECTROCHEMICAL GAS SENSORS - A method of improving performance of electrochemical gas sensors includes cycling potentials applied to one or more of the electrodes of the respective sensor(s) to improve performance of a different electrode. In a process for treating a reference electrode, potentials can be applied to working and, or counter electrodes so as to modify the environment in the vicinity of the reference electrode. An apparatus can carry out the method automatically. | 11-18-2010 |
20120193229 | Electrochemical Oxygen Sensor with Internal Barrier to Oxygen Diffusion - An electrochemical sensor includes a micro-porous plastic membrane supported on a disk and located between a gas inflow port and an electrolyte having a gelled oxygen diffusion barrier. The oxygen diffusion barrier, formed of gelled agar, minimizes thermal shock effects by impregnating any porous materials in the sensor. | 08-02-2012 |
20120241319 | Gas Detector Having Bipolar Counter/Reference Electrode - A gas detector includes at least two electrodes. The electrodes are carried on a common substrate having first and second spaced apart surfaces. The electrodes are formed on respective ones of the surfaces with the substrate sandwiched therebetween. | 09-27-2012 |
20120285828 | OXYGEN SENSORS - An electrochemical oxygen sensor includes a micro-porous plastic membrane supported on a sealing disk and located between a gas inflow port and the sensor's electrolyte. The membrane and disk minimize thermal shock effects due to using the sensor at a first location, at a first temperature, and then moving it to a second location at a different temperature. | 11-15-2012 |
20130087456 | AUXILIARY MICRO-ELECTRODES FOR DIAGNOSTICS OF ELECTROCHEMICAL GAS SENSORS - A gas sensor includes known types of electrodes such as sensing electrodes, counter electrodes or reference electrodes to sense the presence of a predetermined gas. In addition, at least one diagnostic electrode is carried in the sensor. The diagnostic electrode implements at least one diagnostic function without substantially impairing the gas sensing function. The diagnostic electrode is immersed in sensor electrolyte. | 04-11-2013 |
20130087457 | AUXILIARY GAS DIFFUSION ELECTRODES FOR DIAGNOSTICS OF ELECTROCHEMICAL GAS SENSORS - An electrochemical gas sensor includes additional gas diffusion electrodes incorporated to carry out one or more diagnostic functions while the sensor is responding to a target gas. Members of a plurality of sensing and diagnostic electrodes can be switched by associated control circuits to intermittently sense a target gas while others intermittently sense a different gas. The diagnostic electrodes are in direct communication with the target gas that is entering the cell. | 04-11-2013 |
20130319858 | Electrochemical Gas Detector with Carbon Element - An electrochemical detector includes a carbon based element located between a separator and a current collector of an adjacent electrode. Elements can take the form of a carbon fabric located between the separator and the collector, or a linear, or, circular carbon deposit on a surface of the separator adjacent to the respective current collector. Other conductive coatings including gold, platinum or transition metals, as well as carbon, can be deposited directly onto a porous substrate, such as a masked separator material. | 12-05-2013 |
20140353156 | MICROELECTRODES FOR ELECTROCHEMICAL GAS DETECTORS - An electrochemical gas sensor having an electrode with a catalyst distributed on a porous surface is described. The porous surface can be a polytetrafluoroethylene tape. Alternate embodiments include layered or stacked electrodes. | 12-04-2014 |
20150083592 | GAS SENSOR USING AN IONIC LIQUID ELECTROLYTE - A gas sensor having a housing with first and second chambers featuring a porous separator located there between. The first chamber of the sensor being connected to atmosphere via a gas diffusion aperture. The gas sensor having a sensing electrode disposed within the first chamber and at least a second electrode disposed within the second chamber. The sensor having an ionic liquid electrolyte disposed within the second chamber where the sensing electrode and at least second electrodes comprise platinum. | 03-26-2015 |