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| Number | Title | Issue Date |
| 8091404 | Abnormality diagnosis apparatus for NOsensor An NOx catalyst of storage reduction type and an after-catalyst NOx sensor are provided in an exhaust passage in an internal combustion engine. The after-catalyst NOx sensor detects the NOx concentration on the downstream side of the NOx catalyst. The NOx concentrat... | 01/10/2012 |
| 7975524 | Oxygen sensor inspection method and apparatus and oxygen sensor production method There is provided an inspection method of an oxygen sensor, which includes a sensing portion having a reference electrode, a sensing electrode and an oxygen ion conducting solid electrolyte layer arranged between the reference electrode and the sensing electrode. Th... | 07/12/2011 |
| 7937984 | Gas sensor test system and methods related thereto Embodiments of the present invention relate a gas sensor system comprising a gas generating device adapted to generate a test gas, a target gas sensor positioned near the gas generating device, a test gas sensor positioned near the gas generating device and in commu... | 05/10/2011 |
| 7913534 | Microfabricated field calibration assembly for analytical instruments A microfabricated field calibration assembly for use in calibrating analytical instruments and sensor systems. The assembly comprises a circuit board comprising one or more resistively heatable microbridge elements, an interface device that enables addressable heati... | 03/29/2011 |
| 7913535 | Apparatus and methods for dilution Self-calibrating apparatus and methods for dilution of an analyte-containing fluid, and in particular for dilution of analyte concentrations beyond the normal measurement range of a detector, without the requirement for other detectors. The apparatus is preferably a... | 03/29/2011 |
| 7900496 | Method and device for calibration sensors A method and device are disclosed for calibrating sensors, which sensors are arranged on semiconductor chips and are e.g. to be used for detecting a substance in a fluid. The sensors are calibrated while they are still assembled on a semiconductor wafer by exposing ... | 03/08/2011 |
| 7814774 | Method and apparatus for evaluation of a device for measuring lung diffusion capacity A method of evaluating a measuring device for measuring, in normal operation, a diffusion capacity of a person's lungs by measuring a change of concentration of a gas species in a mixture, when the mixture is inhaled and subsequently exhaled by the person or imposed... | 10/19/2010 |
| 7805974 | Testing performance of gas monitors Method, apparatus, and system are utilized for testing the performance of a gas monitor against predetermined monitor characteristics to determine if performance of the gas monitor is validated in a manner whereby testing gas is directly delivered to the gas sensor.... | 10/05/2010 |
| 7788963 | System and method for calibrating a determination of partial pressure of one or more gaseous analytes One aspect of the invention relates to a system adapted to calibrate a determination of information related to one or more gaseous analytes in a body of gas being delivered to an objective by a gas source. In one embodiment the system comprises a partial pressure se... | 09/07/2010 |
| 7716962 | Method of calibrating a gas sensor A method of calibrating a gas sensor that generates an output related to the concentration of a sensed gas, the method comprising: i) obtaining the value of said output or a related value at each of a set of known values of a first... | 05/18/2010 |
| 7673493 | Inspection device for humidity sensor and method for adjusting sensor characteristics of humidity sensor An inspection device inspects a humidity sensor having a sensor portion and a circuit portion, which are integrated into one chip. The inspection device includes: an inspection chamber for accommodating a wafer, in which a plurality of humidity sensors are disposed ... | 03/09/2010 |
| 7640783 | Self-calibrating gas detector and method A portable, calibratible gas detector includes a multi-position gas inflow limiting orifice. When this orifice is in a calibrating position, a source of calibrating gas can be activated to provide a quantity of gas that diffuses into ambient atmosphere flowing throu... | 01/05/2010 |
| 7640784 | System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning A dissolved oxygen measurement system, and a method for calibrating a dissolved oxygen analyzer are provided. The method includes directing a pressurized cleaning fluid, having a known oxygen content, upon a sensing surface of a dissolved oxygen sensor disposed in a... | 01/05/2010 |
| 7631535 | Method of confirming reception of drops of water and powder used for the method A method of confirming reception of a drop of water has the steps of applying a powder on a surface of a gas sensing element, placing the element in a gas passage so as to expose the surface of the element to the gas passage, causing a measured gas to flow through t... | 12/15/2009 |
| 7584642 | Procedure to calibrate a signal supplied by a lambda sensor and device to implement the procedure A procedure for the calibration of the lambda measuring signal supplied by the wideband lambda sensor, which is disposed in the exhaust gas area of an internal combustion engine, and a device to implement the procedure are proposed. During the procedure, a correctio... | 09/08/2009 |
| 7581425 | Gas sensor calibration system A portable detector is described for monitoring a gas in an atmosphere. The detector comprises a housing, at least one gas sensor carried by the housing, and electrical connectors carried by the housing for establishing electrical connections to a calibration appara... | 09/01/2009 |
| 7543472 | Calibration arrangement for breath testing equipment A calibration arrangement for breathalyzers wherein a heightened degree of control and management is applied. Broadly contemplated are arrangements whereby jars or containers of new solution to be used in the calibration arrangement are subject to automatic verifica... | 06/09/2009 |
| 7523638 | Innovative gas monitoring with spacial and temporal analysis The present invention relates to the monitoring of gas concentrations possible in very low ranges (i.e. low ppb and even ppt ranges) and especially use thereof in environmental monitoring, exposure assessment, bomb detection, and health studies. The invention can us... | 04/28/2009 |
| 7520155 | Gas detection apparatus and method A gas detection chamber in which a gas sensing element is provided to detect a component of a gas allowed into the gas detection chamber is heated by a heater, and an output of the heater is regulated by a heater regulator. The heater regulator is adapted to cause t... | 04/21/2009 |
| 7487660 | Method and system for monitoring the functional capability of a particle detector A method and a system for monitoring the functional capability of a particle detector connected downstream, in the flow direction, of a particle filter, in which particles occurring upon the regeneration of the particle filter, in particular ions, are detected by th... | 02/10/2009 |
| 7461536 | Circuit arrangement for operating a gas sensor A circuit configuration for operating a gas sensor is described, including a reference gas space in which an electrode is situated which is supplied with a reference gas pump current to maintain the concentration of the reference gas. A diagnostic system determines ... | 12/09/2008 |
| 7437905 | Gas sensor with one point calibration System and method for calibrating a sensor comprises a detector capable of detecting electromagnetic radiation at least at a radiation wavelength of interest, an analyzer capable of determining concentration values in response to the detected radiation, and a calibr... | 10/21/2008 |
| 7428838 | Calibration for an oil-consumption-measurement system A method for a method for calibrating a system configured to analyze exhaust gas produced by a fluid consuming source is disclosed. The method includes directing a first flow of exhaust gas toward an analyzer that is configured to measure at least one component. The... | 09/30/2008 |
| 7418853 | Process for diagnosis of a lambda probe associated with the exhaust gas catalytic converter of an internal combustion engine In a process for diagnosis of a lambda probe (6) associated with the exhaust gas catalytic converter (3) of an internal combustion engine (1), it is proposed that for a known first and second exhaust gas mass flow {{dot over (m)}1, {d... | 09/02/2008 |
| 7406854 | Gas sensor A gas sensor is provided that is delimited from the environment with a preferably replaceable cap (8) made of a porous, gas-permeable and water-impermeable material, especially sintered PTFE. The gas sensor is protected against environmental moisture and can ... | 08/05/2008 |
| 7401493 | Gas sensor calibration method An apparatus is described for calibrating at least one sensor within a gas detector which detector has a gas inlet in fluid communication with the or each sensor, the apparatus comprising a housing that contains: a) a surface for abutting against the detector; b) a ... | 07/22/2008 |
| 7377147 | Testing performance of gas monitors Method, apparatus, and system are utilized for testing the performance of a gas monitor against predetermined monitor characteristics to determine if performance of the gas monitor is validated in a manner whereby testing gas is directly delivered to the gas sensor.... | 05/27/2008 |
| 7367216 | Phased micro analyzer V, VI A micro fluid analyzer having a concentrator and two or more separators. The analyzer may have one, two or more pumps. The analyzer may have a hyper pre-concentrator having a number of channels. There are numerous detectors positioned along the flow path of the anal... | 05/06/2008 |
| 7366624 | Multi-element smart gas sensor An electronic gas sensor signal conditioner which can automatically adapt to a wide variety of commercial off-the-shelf sensors and provide a digital output in a standard, easily used format. The signal conditioner has analog and digital sections. The analog section... | 04/29/2008 |
| 7359804 | System and method for calibrating remote emissions sensing instruments A system and method is provided for obtaining calibration curves for CO and CO2 during laboratory calibration of one or more remote emissions sensing (RES) instruments, and for self-calibration of on-road RES instruments to compensate for changes in backg... | 04/15/2008 |
| 7343775 | Device for continuous calibration of a gas mass flow measurement device A gas test system (300) is disclosed comprised of a flow loop (302), a blower system (304), a temperature control system (306), a reference meter system (308), and a unit under test (UUT) system (310). The UUT system connect... | 03/18/2008 |
| 7342505 | Gas detection apparatus and method for controlling gas sensor A first gas sensing element is provided in a first position to measure a concentration of a gas continuously, and a second sensing element is provided in a second position to measure the concentration of the gas intermittently. The second position is in close proxim... | 03/11/2008 |
| 7340945 | Failure detection apparatus and failure detection method for exhaust gas sensor An air-fuel ratio sensor has an exhaust-side electrode and an atmosphere-side electrode. The atmosphere-side electrode is disposed in an atmosphere layer that communicates with the atmosphere. Since the air-fuel ratio sensor is disposed in an exhaust passage, exhaus... | 03/11/2008 |
| 7334461 | Method of measuring exhaust gas on internal combustion engines In a method of measuring exhaust gas of internal combustion engines, preferably in test benches, through the use of CVS (constant value sampling) full-flow systems, the exhaust gas of the internal combustion engine is mixed with combustion gas, preferably air, and t... | 02/26/2008 |
| 7318419 | Method for determining the actuator energy required for the different injection types of an actuator of an internal combustion engine In a method for determining the actuator energy required for the different injection types of an actuator of an internal combustion engine, the actuator is impinged by a control signal in such a way that an actuator signal is generated and an injection parameter of ... | 01/15/2008 |
| 7311093 | Element crack detecting apparatus and method for oxygen sensor An element crack detecting apparatus for an oxygen sensor detects a sensor output voltage for an abnormality detection period after a fuel cut-off is started during operation of an engine. When the output voltage becomes negative, an abnormality counter is counted u... | 12/25/2007 |
| 7306951 | Method and apparatus for determining diffusible hydrogen concentrations A measuring apparatus and method for use in measuring diffusible hydrogen concentrations in materials, structures, and other objects. In an embodiment of the invention for use in welding applications, the measuring apparatus (10) includes a sensor assembly ( | 12/11/2007 |
| 7305299 | Device and method of controlling exhaust gas sensor temperature, and recording medium for exhaust gas sensor temperature control program An apparatus for controlling temperature of an exhaust gas sensor can include a temperature estimating device for sequentially estimating the temperature of an active element based on a predetermined element temperature model, which is representative of a temperatur... | 12/04/2007 |
| 7293557 | Abnormality detecting apparatus and abnormality detecting method for an air/fuel ratio sensor An abnormality detecting apparatus includes an air/fuel ratio sensor that detects an air/fuel ratio within a range including the stoichiometric air/fuel ratio, an admittance detector for detecting an admittance of the sensor, and a temperature detector for detecting... | 11/13/2007 |
| 7290434 | Method and device for determining the condition of a measuring probe An exemplary method is disclosed which serves to determine a condition of at least one measuring probe which is integrated in a process vessel of a process system with one or more system stages and which is cleaned from time to time using, for example, CIP- and SIP ... | 11/06/2007 |
