Gas Patents (Class 73/1.06)
  • Patent number: 10451597
    Abstract: A determination device determining malfunction of a humidity sensor includes a malfunction determination portion. The humidity sensor includes a humidity detector, a temperature detector and a heater. The humidity detector has a humidity-sensitive film in an intake passage and detects a relative humidity of intake air taken into an internal combustion engine for a vehicle. The temperature detector detects a temperature of the humidity-sensitive film. The heater heats the humidity-sensitive film and the temperature of the humidity-sensitive film is increased by the heater. The malfunction determination portion estimates an estimated relative humidity at a subsequent temperature from an original relative humidity and the subsequent temperature, and compares the estimated relative humidity at the subsequent temperature and an actual subsequent relative humidity to determine malfunction of the humidity detector.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 22, 2019
    Assignee: DENSO CORPORATION
    Inventor: Yasushi Kono
  • Patent number: 10281446
    Abstract: An engine control device of a vehicle engine includes a processor that detects an operation state of the engine and controls an output of a heater which heats an intake air oxygen concentration sensor detecting oxygen concentration of intake air of the engine. The intake air includes a portion of exhaust gas recirculated to an intake passage of the engine as EGR gas. The processor controls the output of the heater, according to a detected operation state of the engine, so that the intake air oxygen concentration sensor enters one of (i) an active state where a temperature of the intake air oxygen concentration sensor becomes greater than or equal to an activation temperature, (ii) a semi-active state where the sensor temperature is lower than the activation temperature and higher than an inactivation temperature, and (iii) an inactive state where the sensor temperature is lower than the inactivation temperature.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: May 7, 2019
    Assignee: FUJITSU TEN Limited
    Inventor: Masatoshi Hagiwara
  • Patent number: 10229824
    Abstract: A mass spectrometer for analyzing a sample may include an analysis chamber for analyzing the sample and a first vacuum pump operably connected to the analysis chamber, wherein the first vacuum pump operates to create a first vacuum state. The mass spectrometer may also include a sample-preparation chamber operably connected to the analysis chamber and a second vacuum pump that operates to create a second vacuum state, wherein the first vacuum state is a lower pressure than the second vacuum state. The second vacuum pump may be operably connected to the first vacuum pump in a first configuration, and the second vacuum pump may be operably connected to the sample-preparation chamber in a second configuration.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 12, 2019
    Assignee: 1st Detect Corporation
    Inventors: Michael Spencer, Warren Mino, David Rafferty
  • Patent number: 10139363
    Abstract: In order to make it possible to accurately measure the HF concentration in a BHF solution in a low concentration region using a simple structure, there are provided a relationship storage unit that stores relationships between a pH of a BHF solution and an HF concentration, a pH meter that measures the pH of the BHF solution, and a concentration calculation unit that refers to relationships stored in the relationship storage unit, and calculates the HF concentration from the pH values measured by the pH meter.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 27, 2018
    Assignee: HORIBA, LTD.
    Inventor: So Takagi
  • Patent number: 10132262
    Abstract: Methods for optimizing exhaust gas system regeneration and cleaning are provided. The exhaust gas system can include an exhaust gas stream supplied by an exhaust gas source to a particulate filter device through an exhaust gas conduit, and a gas sensor having a sampling end disposed within the exhaust gas conduit upstream from the particulate filter device. The methods can include detecting a gas sensor malfunction, detecting particulate filter device soot loading, and performing an optimized maintenance utilizing at least one common technique. A common technique is one which is capable of cleaning a gas sensor and regenerating a PF device. The exhaust gas source can comprise an internal combustion engine and the at least one common technique comprises a post-injection strategy. Systems for performing the disclosed methods are also provided.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 20, 2018
    Inventors: Alberto Lorenzo Vassallo, Claudio Cortassa, Denise Risso, Luca Giuseppe Pairolero
  • Patent number: 10100637
    Abstract: A device (118) for automatically calibrating an analyzer (112) used for mud gas or fluid logging, comprising: a cabinet (140) having a plurality of dedicated reception slots (144), each slot (144) being configured for the insertion of a canister (148) containing a known calibration mixture, the cabinet (140) containing: a main line (174) to be connected to the analyzer (112), a connection assembly able to selectively connect each reception slot (144) to the main line (174), a control unit (151) for controlling the connection assembly to successively connect at least two successive slots (144) to the main line (174).
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: October 16, 2018
    Assignee: GEOSERVICES EQUIPEMENTS
    Inventors: Jerome Breviere, Patrick Banik
  • Patent number: 10054070
    Abstract: Methods and systems are provided for diagnosing sensors in an engine intake by utilizing in an evaporative leak check module pump (ELCM pump). In one example, during engine off conditions, the ELCM pump in an evaporative emission system of the vehicle may be operated in a pressure mode to flow ambient air from the evaporative emissions system to the intake manifold. During humidity sensor diagnostics, the air flow may be used to generate water vapors within the intake manifold, and humidity sensor may be rationalized by monitoring an output of the humidity sensor; and during MAF sensor diagnostics, MAF sensor may be rationalized by monitoring if the MAF sensor output corresponds to a flow rate generated by the ELCM.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 21, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, Douglas Raymond Martin
  • Patent number: 10031097
    Abstract: A device produces an electrical signal in response to a stimulus. The device is formed of a flexible substrate including a layer of fibers, for example, paper, and a solution of dispersed carbon nanotubes coated onto and within the fibers, the solution evaporated to leave carbon nanotubes intertwined within the layer of fibers. The carbon nanotubes are functionalized to be optimized for producing an electrical signal for a particular stimulus, where the stimulus includes exposure of the device to a particular gas or vapor. A number of such devices, some or all of which can be different, are housed together, for producing a complex electronic signal, or for sensing any of a wide variety of stimulus.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: July 24, 2018
    Assignee: The United States of America as Represented by the Administrator of NASA
    Inventors: Jin-Woo Han, Meyya Meyyappan
  • Patent number: 9970894
    Abstract: A method and device for measuring a substance's concentration in a fluid. The method includes first passing a sample to be measured through a chemical sensor at least twice and recording the response value each time; forming a simultaneous equation set using the equation relation between the response value obtained during each measurement and the concentration of the substance, and the mass equation relation satisfied by the concentration change caused by a physical, chemical reaction during each measurement and by the change of the mass, electric quantity, and heat; solving for the concentration of the substance measured and the sensor calibration parameter. The method, used as an absolute measurement method, can be applied to calibrate the sample concentration of a fluid, overcomes the effects on the measurements caused by temperature, humidity, pressure, and some interfering gas, requires no sensor calibration, and substantially enhances the measurements' stability and reliability.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: May 15, 2018
    Assignee: Sunvou Medical Electronics Co., Ltd.
    Inventors: Ray Xie, Jie Han, Lijun Shen, Yiping Han
  • Patent number: 9964530
    Abstract: A confined space entry station is disclosed. The station has a back plate, an accessory holder, and a probe holding arm. The back plate is configured to attach to a manway of a confined space. The accessory holder is connected to the back plate. The probe holding arm has a connecting segment and a probe holding segment. The probe holding arm has a deployed position and a stored position. The connecting segment is connected to the probe holding segment. The probe holding segment is transverse to the connecting segment. The connecting segment is pivotally connected to the back plate and extends beyond the back plate when the probe holding arm is in the deployed position. The probe holding segment has a surface for supporting a probe. The probe holding segment extends transverse to the back plate when the probe holding arm is in the deployed position.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 8, 2018
    Inventor: Tracy William Baldaccini
  • Patent number: 9804137
    Abstract: A method for calibrating an exhaust gas sensor arranged in a measurement chamber, includes providing a measurement chamber in or adjacent to an exhaust channel of an internal combustion engine. At the start of a calibration phase, exhaust gas present in the measurement chamber is displaced by a filling of the measurement chamber with calibration gas, and at the end of the calibration phase, exhaust gas diffuses into and/or is introduced into the measurement chamber.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 31, 2017
    Assignee: MAN TRUCK & BUS AG
    Inventor: Andreas Doering
  • Patent number: 9719891
    Abstract: An exemplary embodiment of the present invention provides a simultaneous multipoint testing system for analyzing the composition of a fluid in a duct. The system can comprise a plurality of probes each having a plurality of sample legs at different locations within the duct. Each probe can also comprise a mixing chamber for mixing fluid samples collected by each of the sample legs. The system can further comprise a global mixing chamber configured to receive the mixtures of fluid samples from each probe mixing chamber and mix those fluid samples to create a global fluid sample. The system can further comprise an analyzer configured to receive at least a portion of the global fluid sample and measure levels predetermined compounds present in the at least a portion of the global fluid sample.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 1, 2017
    Assignee: The Southern Company
    Inventors: Gary Blackmon, Mitchell Gober
  • Patent number: 9714623
    Abstract: The invention relates to a method and to a regulating device for regulating an air-fuel ratio of an internal combustion engine (10), wherein an exhaust-gas composition of an exhaust gas of the internal combustion engine (10) is determined by virtue of an actual probe signal, which is dependent on the exhaust-gas composition, being detected by means of an exhaust-gas probe (22) and the exhaust-gas composition being determined as a function of the actual probe signal by means of a characteristic curve or a calculation rule, and wherein the determined exhaust-gas composition is compared with a setpoint value or a threshold value, the attainment or exceedance of which triggers a manipulation of the air-fuel ratio supplied to the internal combustion engine (10), wherein, in order to take into consideration at least one disturbance variable which affects the actual probe signal, a safety margin (?S) is defined which is applied to the characteristic curve or calculation rule, to the actual probe signal or to the set
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: July 25, 2017
    Assignee: VOLKSAWAGEN AKTIENGESELLSCHAFT
    Inventor: Hermann Hahn
  • Patent number: 9518966
    Abstract: A method and test devices are used for field calibration of gas detectors. Brand new gas detectors are used as measurement standards in field calibration. The brand new gas detectors are in this case either employed directly as working standards, in which case the regular calibration by a reference standard is dispensed with, since the brand new gas detectors are always deemed to be sufficiently accurate. Alternatively, the brand new gas detectors are employed directly, namely as sufficiently accurately calibrated reference standards for the reference gas sensors acting as working standards and incorporated into the test device. In both cases the measured values of the gas sensors in the gas detectors to be calibrated are fed back to a sufficiently calibrated system, namely either directly to at least one brand new gas detector as a working standard or else to a reference sensor of a calibrated test device.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 13, 2016
    Assignee: SIEMENS SCHWEIZ AG
    Inventors: Aleksandar Duric, Harald Ebner, Martin Forster
  • Patent number: 9494508
    Abstract: A particulate matter sensor unit may include a sensor portion of an electrostatic induction type that may be reacted when a particulate matter having electric charge may be passing the vicinity thereof, a protection pad that the sensor portion may be bonded on one side thereof through a conductive paste, an heater electrode that may be formed on the protection pad and burns the particulate matters that may be disposed on the sensor portion to eliminate them, and a sensor electrode that may be formed on the protection pad to transfer a signal that may be generated by the sensor portion to an outside.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 15, 2016
    Assignees: Hyundai Motor Company, SNU R&DB FOUNDATION
    Inventors: Jin Ha Lee, Sera Lim, Kuk-jin Chun, Junyong Lee, Kyoung doug Min, Seounghyeon Lee, Young Jae Kim
  • Patent number: 9285341
    Abstract: There is provided a monitoring apparatus that monitors abnormalities in a system including a plurality of components or products. The plurality of components or products respectively include a plurality of types of microcapsules that release, due to specific causes, a plurality of marker chemical substances respectively, the marker chemical substances having respectively different ion mobilities. The monitoring apparatus includes an ion mobility sensor that detects the plurality of marker chemical substances. By detecting the marker chemical substances, the monitoring apparatus is capable of identifying the occurrence of an abnormal state, the type of abnormal state, the occurrence location, the extent of the abnormal state, and the like.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: March 15, 2016
    Assignee: ATONARP INC.
    Inventor: Tomoyoshi Sato
  • Patent number: 9255916
    Abstract: A calibration system is provided that supports a plurality of multi-gas detectors and that includes additional options for delivering additional test gases to the detectors. The system can include a calibration module for calibrating a multi-gas detector with a first gas and a replacement module capable of being coupled to the calibration module. When coupled to the calibration module, the replacement module can support delivering a plurality of test gases, not including the first test gas, to the calibration module.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 9, 2016
    Assignee: Honeywell International Inc.
    Inventors: Tan Rambo, Clive Warden Kennard
  • Patent number: 9229047
    Abstract: To provide a method for manufacturing a sensor element, by which stabilization of an electrode, which is performed prior to inspecting element characteristics, can be performed for a shorter time period and in a more reliable manner than in the conventional. The sensor element includes: an oxygen-ion conductive solid electrolyte layer; a first electrode that is formed on a surface of the oxygen-ion conductive solid electrolyte layer; and a second electrode that is formed in a space provided inside the oxygen-ion conductive solid electrolyte layer, and that is configured to reduce said predetermined gas component. As the pre-treatment, by an external power source, a voltage is applied between the first electrode and the second electrode, to thereby decompose and remove a gas component attached to the second electrode.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 5, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Shinji Ohtsubo, Tetsuya Ishikawa
  • Patent number: 9128067
    Abstract: A test station for a plurality of test gases, includes a main unit (10) with a control (12) and test modules (20), each for a gas measurement device, that exchange data to register a type of gas measurement device and test gas(es) required for the device type. The control sets a schedule for a test using a test gas, or for a plurality of successive tests each with different test gases and carries out the specific test planned according to the schedule, in parallel with tests for all of the test modules for a test gas and determines, as an additional gas measurement device is inserted, based on the particular device type of the additional gas measurement device, whether the currently-running test with the current test gas is suitable for the inserted test module; and if the test gas is suitable, to start the test for this test module.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 8, 2015
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Ulf Ostermann, Ingo Kaneblei, Stefan Barten, Christof Möller, Sven Schimmel
  • Patent number: 9068937
    Abstract: A first voltage (V1) is detected between an auxiliary pump electrode and a reference electrode of an exhaust gas sensor, and a target diagnosis value (SDIAG) is determined as a function of the detected first voltage (V1). A measured current (Im) is detected between a measurement electrode and a second main pump electrode of the exhaust gas sensor, said measured current being set up as the pump current by regulating a second voltage between the measurement electrode and the reference electrode to a pre-defined voltage. An actual diagnosis value (IDIAG) is determined as a function of the detected measured current (Im). An error (ERR) of the exhaust gas sensor is recognized depending on the target diagnosis value (SDIAG) and the actual diagnosis value (IDIAG).
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: June 30, 2015
    Assignee: Continental Automotive GmbH
    Inventors: Muammer Kilinc, Tim Walde
  • Patent number: 9062623
    Abstract: A method is described for diagnosing a heatable exhaust gas sensor of an internal combustion engine, in which a predefined chronologically varying or constant voltage or a predefined chronologically varying or constant current is generated with the aid of a voltage source, the voltage or the current is applied to terminals of the exhaust gas sensor, a current or applied voltage, which flows through the voltage source when the voltage or the current is applied, is detected, and the current or the voltage is analyzed to diagnose the exhaust gas sensor.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 23, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Cyril Verdier, Stefan Klein, Gerhard Lemke, Karsten Glashoff, Peter Brida, Frank Meier, Thomas Seiler
  • Patent number: 9052279
    Abstract: When a detection signal obtained from the cell of a gas sensor (S15) has reached a start determination value (specifically, when the output voltage of the cell is higher than 600 mV (S16: YES) or lower than 300 mV (S17: YES)), a pulse voltage is applied to the cell (S18), and a start-time internal resistance is obtained on the basis of the detection signal having changed as a result of application of the pulse voltage (S20). The start-time internal resistance is compared with a deterioration determination value set in advance (S21). A target resistance of the cell used in temperature control (energization control) for the heater is corrected in accordance with the result of the comparison (S28). Thus, the temperature of the cell can be stably maintained constant irrespective of deterioration of the cell.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: June 9, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Tsuyoshi Kato, Kentaro Mori, Soichi Kawaguchi, Yoshinori Hibino, Ryosuke Ichida
  • Publication number: 20150101328
    Abstract: Methods and systems are provided for accurately learning the zero point of an intake gas oxygen sensor in varying ambient humidity conditions. The learned zero point is corrected based on an estimated ambient humidity to calibrate the reading for dry air conditions or standard humidity conditions. EGR control is performed by comparing the output of an intake oxygen sensor during EGR conditions relative to the humidity-corrected zero point.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Timothy Joseph Clark, Richard E. Soltis, Jacobus Hendrik Visser, Christopher House
  • Publication number: 20150089993
    Abstract: A method for measuring the concentration of a gas component in a measurement gas using a gas analyzer comprises varying the wavelength of the light of a wavelength-tunable light source within periodically consecutive scan intervals for wavelength-dependent scanning of a gas component absorption line of interest. The method also comprises modulating the wavelength of the light of the wavelength-tunable light source with a frequency, guiding the modulated light through the measurement gas onto a detector and demodulating a measurement signal generated by the detector in the event of a harmonic of the frequency. The method further comprises producing a measurement result by fitting a desired curve to the profile of the demodulated measurement signal. A function orthogonal to the desired curve is provided, and an orthogonal component of the measurement result is produced by fitting the orthogonal function to the profile of the demodulated measurement signal.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 2, 2015
    Inventors: Ralf Bitter, Thomas Hankiewicz, Christoph Wolfgang Marquardt, Jan Nygren, Kai-Uwe Pleban, Franz Steinbacher
  • Publication number: 20150068270
    Abstract: A method and apparatus for background cancellation for electronic noses to make automated aroma analysis practical in complex field environments. The system and methods compensate for background contaminants while automatically emphasizing all constituents, be they chemically identified or not, which represent information content in the sample being tested.
    Type: Application
    Filed: April 24, 2013
    Publication date: March 12, 2015
    Applicant: Applied Nanotech Holdings, Inc.
    Inventors: Royce W. Johnson, Alexei Tikhonski
  • Patent number: 8973211
    Abstract: An apparatus for cleaning a detector comprising a housing and a bowl connected to the housing having a detector chamber adapted for enclosing a detector to be cleaned, a contacting surface positioned on the bowl, and one of more air nozzles positioned within the detector chamber for directing one or more bursts of compressed air at a detector to clean the detector, and a fan positioned within the housing operable to draw air within the detector chamber into a filter, and a dust collector for containing dirt and debris dislodged from a detector during the cleaning operation.
    Type: Grant
    Filed: February 4, 2012
    Date of Patent: March 10, 2015
    Assignee: HSI Fire & Safety Group, LLC
    Inventors: Scott Rote, Dan Johnson, Aaron B. Eiger
  • Patent number: 8966952
    Abstract: Apparatus for testing a hazard detector, the apparatus comprising electrically-powered generating means arranged to generate at least two stimuli for application to the detector; and control means arranged to control the generation of each stimulus by said stimulus generating means, wherein said generating means includes a carbon monoxide generator.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: March 3, 2015
    Assignee: Sata Limited
    Inventor: Stewart Pepper
  • Patent number: 8959979
    Abstract: A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, particulate sensor degradation is indicated in response to an output of said particulate matter sensor staying below a threshold as engine temperature increases past the dewpoint temperature.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: February 24, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Garry Anthony Zawacki, Robert F. Novak, Roberto Teran, Jr., Dave Charles Weber, Michiel J. Van Nieuwstadt, Michael Hopka, William Charles Ruona
  • Publication number: 20150047411
    Abstract: A method for determining a polarization of a pump cell and/or a Nernst cell of a lambda probe for the diagnosis of the broadband lambda probe. A voltage or current pulse is applied to the pump/Nernst cell in a first method task, and, in a second method task, a voltage at the pump cell and/or the Nernst cell, or a variable that is related to the polarization or its time characteristic is determined and used as a measure of the polarization, and the function of the broadband lambda probe is monitored via the ascertained polarization. The determination of the polarization may be performed as a voltage measurement performed once or multiple times, or by determining the effect of the polarization in an associated controller, such as a pump current controller of an engine control unit. The variable associated with the polarization may be the reaction of the pump current control.
    Type: Application
    Filed: November 15, 2012
    Publication date: February 19, 2015
    Inventors: Bernhard Ledermann, Claudius Bevot, Rolf Reischl
  • Patent number: 8949037
    Abstract: A method and system for detecting, quantifying or characterizing emitting sources. According to an embodiment, an emission source is located by monitoring an area with one or more sensors, determining a plume, generating one or more candidates for the emission source, and using the plume to derive one or more characteristics associated with the emission source, and then locating the emission source based on agreement or convergence of the one or more characteristics.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: February 3, 2015
    Assignee: Airdar Inc.
    Inventors: Dennis Scott Prince, Terry Dan Butler
  • Publication number: 20150027196
    Abstract: A measured value of a sensor element is obtained during repeatedly executed measuring periods for performing different measurements and for setting different operating states, the sensor element being electrically connected in a periodically alternating manner, in consecutive switching positions, in a predefined order, where at least one measurement for determining the measured value is performed repeatedly within a measuring period for determining individual values at predefined switching positions, the measured value being determined from the individual values. Using the switching position within the measuring period, the operating state of the sensor element preceding the individual measurement, and therefore, the influence of the preceding circuit configuration on the individual measured value, is known, and the individual values are correspondingly corrected. By correcting the individual values, the measured value determined from the individual values is also corrected.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 29, 2015
    Inventors: Bernhard Ledermann, Ulrich Belzner, Thomas Steinert
  • Patent number: 8939006
    Abstract: A photoacoustic detector wherein control circuits compensate for long term variations of components therein including a light source and sensing microphones. The control circuits intermittently energize the source to evaluate changes in at least source resistance. The control circuits intermittently energize an acoustic generator to evaluate changes in one or more generator responsive microphones.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Honeywell International Inc.
    Inventors: Thomas M. Rezachek, Gary P. Shubinsky, Michael Freeman
  • Publication number: 20150020569
    Abstract: A test station for a plurality of test gases, includes a main unit (10) with a control (12) and test modules (20), each for a gas measurement device, that exchange data to register a type of gas measurement device and test gas(es) required for the device type. The control sets a schedule for a test using a test gas, or for a plurality of successive tests each with different test gases and carries out the specific test planned according to the schedule, in parallel with tests for all of the test modules for a test gas and determines, as an additional gas measurement device is inserted, based on the particular device type of the additional gas measurement device, whether the currently-running test with the current test gas is suitable for the inserted test module; and if the test gas is suitable, to start the test for this test module.
    Type: Application
    Filed: June 10, 2013
    Publication date: January 22, 2015
    Inventors: Ulf Ostermann, Ingo Kaneblei, Stefan Barten, Christof Möller, Sven Schimmel
  • Patent number: 8925366
    Abstract: A gas-solution equilibrium device for a liquid sample gas analyzer includes a temperature-controlled, thermally-conductive mandrel, a coil of gas-permeable tubing wrapped around the mandrel, the gas-permeable tubing having an inlet and an outlet, and a housing having an internal space containing the temperature-controlled, thermally-conductive mandrel, the coil of gas-permeable tubing and a volume of gas where the gas-permeable tubing has a predefined linear length and a predefined wall thickness, the combination of which together is capable of equilibrating a liquid passing through the coil at a predefined flow rate with oxygen in the atmosphere to provide a gas calibration solution in real time at the outlet of the tubing for the liquid gas analyzer.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 6, 2015
    Assignee: Nova Biomedical Corporation
    Inventor: Edward J. Mulhern
  • Publication number: 20140375463
    Abstract: An electrolytic gas sensor which is sensitive to a specific gas and has a working, reference and counter electrode is functionally monitored. A differential voltage between the reference and working electrodes is amplified and the potential of the counter electrode is regulated to minimize the differential voltage. Then a measured current flowing into the counter electrode approximately proportionally to the gas concentration of the gas to be detected arises. Independently of the determination of the gas concentration, a working, counter and reference voltage which is present at the three electrodes in each case is captured and monitored for an impermissible deviation. In an impermissible case an assigned error message is then output. Online monitoring of the gas sensor is thus possible and no interruption of the measurement operation for test purposes and additional components are required.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventor: ALEKSANDAR DURIC
  • Publication number: 20140360245
    Abstract: A gas sensor which works according to the principle of thermal conductivity is functionally tested. In the method, a calibration cycle is conducted in which a membrane of the gas sensor is immersed in a fluid calibration medium having a known concentration of a target gas. After the calibration cycle, a measurement chamber of the gas sensor is purged with a purging gas. Then, a measuring cycle is conducted, using a thermal conductivity sensor to measure the target gas in the measurement chamber. Using a calibration baseline established from the calibration cycle and a measurement baseline in the measurement cycle, a baseline comparison value is obtained and compared to a predetermined baseline threshold value. An error message, indicating a malfunction in the purging gas supply, is generated when the baseline comparison value exceeds the predetermined baseline threshold value.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: René Oberlin, André Möbius
  • Publication number: 20140331737
    Abstract: A gas application device (2) for gas measuring apparatuses (5) has a test chamber device (58) for providing a test gas. A predetermined positive pressure is applied in the line system that connects the test chamber device (58) to one or more test-gas containers (PG) such that a constant test-gas supply (flow) to the test chamber device (58) can be ensured. A method for testing gas measuring apparatuses (5), and a calibration measuring apparatus for testing and calibrating gas measuring apparatuses (5) are also provided.
    Type: Application
    Filed: November 28, 2012
    Publication date: November 13, 2014
    Inventors: Ingo Kaneblei, Stefan Barten
  • Patent number: 8869586
    Abstract: Methods and systems for calibrating a chemical sensing system are disclosed. Detection of a substance using a first chemical sensor in a chemical sensing system may be initiated at a first time. The first chemical sensor may output a first sensor value. Detection of the substance using a second chemical sensor in a chemical sensing system may be initiated at a second time that differs from the first time by a delta value. The second chemical sensor may output a second sensor value. The chemical sensing system may be calibrated based on the first and second sensor values at the second time and the first and second sensor values at a current time.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: October 28, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Mordehai Margalit
  • Publication number: 20140311209
    Abstract: There is provided a portable electronic device with one or more integrated ambient sensors, such as temperature or humidity sensors, for measuring an ambient parameter, a display for displaying the parameter or related information and shared by other elements of the device, and a system receiving input relating to internal or external states of the device and generating in response to the input an accuracy measure of the ambient parameter measurement.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 23, 2014
    Inventors: Dominik NIEDERBERGER, Andrea SACCHETTI, Dominik BONI
  • Publication number: 20140316672
    Abstract: Methods and systems are provided for an engine coupled temperature-based humidity sensor. Degradation of the humidity sensor may be determined while flowing gasses into an engine intake air downstream of a humidity sensor and upstream of a compressor, indicating humidity sensor degradation when relative humidity readings change by less than a threshold while temperature at the sensor changes greater than a second threshold.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 23, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Michael James Uhrich, Yong-Wha Kim, Ross Dykstra Pursifull
  • Publication number: 20140298880
    Abstract: A diagnostic method for a capacitive humidity sensor comprising a heater, and a capacitance-sensing element that individually indentifies heater, temperature-sensing element, or capacitance-sensing element degradation. By this method, individual elements of the sensor may be replaced or compensated for to allow for further operation.
    Type: Application
    Filed: April 5, 2013
    Publication date: October 9, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Ross Dykstra Pursifull, Imad Hassan Makki, Timothy Joseph Clark, Michael James Uhrich, Pankaj Kumar, Yong-Wha Kim
  • Publication number: 20140290328
    Abstract: A test system and a test method adapted for a remote control device are disclosed. The remote control device is electrically connected to gas supply equipment. The gas supply equipment stores gas and is connected to a gas actuating device. A gas detector is near to the gas actuating device. The method includes: providing a test interface, acquiring a gas detector on the test interface and generating a trigger signal to start testing the gas detector; remotely controlling the gas supply equipment to generate high pressure; and controlling the gas actuating device to spew out gas. The method further includes: comparing the concentration of the gas with a stored reference concentration to determine whether or not the gas detector works properly and generating a result.
    Type: Application
    Filed: July 29, 2013
    Publication date: October 2, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: SHIH-CHENG WANG, YI-WEN CAI
  • Publication number: 20140260511
    Abstract: A process gas analysis system is provided. The system includes a probe insertable into a source of process gas and having a distal end and a chamber proximate the distal end. A gas sensor is mounted within the chamber and is configured to provide an electrical indication relative to a species of gas. A diffuser is mounted proximate the distal end of the probe and is configured to allow gas diffusion into the chamber. A source of calibration gas is operably coupled to the probe and is configured to supply calibration gas, having a known concentration of the gas species. Electronics are coupled to the sensor and configured to store a pre-calibration process gas concentration and to measure an amount of time (sensor return time) for the sensor response to return to the pre-calibration process gas concentration. The electronics are configured to compare a measured sensor return time with a known-good sensor return time to provide an indication relative to the diffuser.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Rosemount Analytical Inc.
    Inventors: Joseph C. Nemer, James D. Kramer, Anni S. Wey, Douglas E. Simmers, Mark W. Schneider
  • Publication number: 20140260512
    Abstract: A heat-generating apparatus includes a frame assembly and a securement assembly carried by the frame assembly. The securement assembly includes a panel member arranged in a first vertical plane for supporting a target material parallel to the first vertical plane. The heat-generating apparatus also includes a heating support assembly adjustably supported by the frame and including at least one heating element arranged in a second vertical plane that is parallel to and offset from the first vertical plane. The heating support assembly is adjustable along a horizontal first adjustment axis that is perpendicular to each of the first and second vertical planes and along a second adjustment axis that is disposed in or adjacent to the second vertical plane.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Underwriters Laboratories Inc.
    Inventor: Underwriters Laboratories Inc.
  • Publication number: 20140260510
    Abstract: A composition useful as a Reference Standard for measurement of Cetane Number or for use as a standard for determining a Derived Cetane Number consists essentially of a blend of n-hexadecane and 2,2,4,6,6-pentamethylheptane. The disclosed Reference Standards can be used directly as substitutes for blends of n-hexadecane and 2,2,4,4,6,8,8-heptamethylnonane in ASTM D613-10a for determining Cetane Number, or in ASTM D6890, ASTM 07170 or ASTM D7668 to determine a Derived Cetane Number.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Inventor: Indresh Mathur
  • Patent number: 8833133
    Abstract: A test apparatus for evaluating a measuring device for measuring 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 a person, wherein the test apparatus includes (a) a port for connecting to the measuring device; (b) a compartment coupled to the port; (c) a circulation circuit configured to circulate gas from the compartment back to the compartment; and (d) a gas species removing element configured to selectively reduce a partial pressure of the gas species at a point in the circulation circuit.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: September 16, 2014
    Assignee: Erasmus University Medical Center Rotterdam
    Inventors: Antonius Fransiscus Marie Verbraak, Wilhelmus Petrus Johannes Holland
  • Patent number: 8823400
    Abstract: A diagnostic method and system is described for diagnosing an operating condition of a conductive particulate matter sensor. The sensor has a substrate with electrical resistance that varies with temperature and two electrodes on the substrate adapted to collect particulate matter between the electrodes, thereby establishing an electrically conductive path through collected particulate matter between the electrodes that can be detected by measuring electrical resistance between the electrodes, Relect. The diagnosis is performed by heating the substrate in the area between the electrodes and using the resistance between the electrodes to determine detecting whether contamination is present on the surface of the sensor. Heat may be maintained on the sensor to attempt to burn off a detected contaminant, and a subsequent resistance reading may be used to determine if the contaminant was successfully burned off.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 2, 2014
    Assignee: Delphi Technologies, Inc.
    Inventors: Lary R. Hocken, Charles S. Nelson
  • Patent number: 8820135
    Abstract: A method for operating an oxygen sensor arrangement senses the oxygen in a breathing loop of a breathing apparatus. The sensor arrangement includes a primary oxygen sensor to measure the oxygen in the breathing loop, a secondary oxygen sensor to measure the oxygen in the breathing loop, and a control arrangement to obtain measures from the oxygen sensor. A test channel arrangement provides a first gas having a first fraction of oxygen from a first gas supply to the primary oxygen sensor at a position adjacent to the primary oxygen sensor. A test valve arrangement opens and closes the flow of the first gas through the test channel arrangement. The control arrangement actuates the first test valve arrangement to provide an amount of the first gas to the primary oxygen sensor via the test channel arrangement and obtain measures from the primary and secondary oxygen sensors.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: September 2, 2014
    Assignee: Poseidon Diving Systems AB
    Inventors: William C. Stone, Nigel Jones
  • Publication number: 20140238102
    Abstract: In a method for adjusting a gas sensor having a hollow chamber connected to a measuring gas chamber and having an electrochemical pump cell electrochemically pumping the gas component into or out of the hollow chamber, at least two pumping-in phases are provided in which the gas component is pumped into the hollow chamber by the electrochemical pump cell, and at least two pumping-out phases are provided in which the gas component is pumped out of the hollow chamber by the electrochemical pump cell. On the basis of at least one feature of the pump current during the pumping-out phases (Mout), at least one piece of information for adjusting the gas sensor is generated. A parameter regarding the pumping-in is predefined differently in the at least two pumping-in phases.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 28, 2014
    Inventors: Hartwig Lehle, Lothar Diehl, Jochen Betten, Moritz Waldorf, Thomas Seiler
  • Publication number: 20140238101
    Abstract: An automatic sensor excitation voltage adjustment feature, a multi-range concentration feature, a single calibration feature and a barrier circuit feature. The automatic sensor excitation voltage adjustment feature includes a transmitter having a transmitter microprocessor that provides an initial voltage to a sensor having a sensor microprocessor. As the voltage changes a correction signal is relayed from the sensor microprocessor to the transmitter microprocessor. The correction signal is used to adjust the voltage applied to the sensor. The multi-range concentration sensor feature includes an amplifier associated with the sensor/microprocessor to create gain settings used to optimize sensor resolution by changing a gain value for the sensor. This enables use of a single sensor for a variety of different concentration ranges.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 28, 2014
    Inventors: Stephen Edwin Mealy, JR., Fatos Adami, Nicholas Anthony Deblasio, Byron Eugene Mclendon, Keli Chalfant Merkel, Edward Russell Propst, JR.