公开(公告)号：US11994490B2

公开(公告)日：2024-05-28

申请号：US18165712

申请日：2023-02-07

申请人： Honeywell International Inc.

发明人： Johnny Jian ,  Neils Hansen ,  Keith Francis Edwin Pratt ,  Paul Westmarland ,  Fuxia Liu

IPC分类号： G01N27/404 ,  G01N27/40 ,  G01N27/413 ,  G01N27/407

CPC分类号： G01N27/404 ,  G01N27/40 ,  G01N27/413 ,  G01N27/4078

摘要： Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

公开(公告)号：US20240118236A1

公开(公告)日：2024-04-11

申请号：US18376997

申请日：2023-10-05

申请人： Mettler-Toledo GmbH

发明人： Sebastian Schmidt ,  Davide Aratori

IPC分类号： G01N27/407 ,  G01N27/28 ,  G01N27/30 ,  G01N27/40

CPC分类号： G01N27/4073 ,  G01N27/283 ,  G01N27/302 ,  G01N27/40 ,  G01N27/404

摘要： A sensor for measuring a species in a process medium includes a reinforced membrane, a sensor shaft, and an electrolyte provided between the reinforced membrane and the sensor shaft. The sensor shaft includes electrodes. A device for such a sensor also includes a pre-disposed gel electrolyte. Systems and methods related to the same are also disclosed.

公开(公告)号：US20190219535A1

公开(公告)日：2019-07-18

申请号：US16331178

申请日：2017-12-26

申请人： MAXELL, LTD.

发明人： Naohisa KITAZAWA

IPC分类号： G01N27/404 ,  G01N27/416 ,  G01N27/30

CPC分类号： G01N27/404 ,  G01N27/30 ,  G01N27/416

摘要： Provided is an electrochemical oxygen sensor that attains a high response speed and also an improved service life of the oxygen sensor. The electrochemical oxygen sensor according to the present invention includes a holder 9 and a positive electrode 45, negative electrode 8, and electrolyte solution 7, which are contained in the holder 9. The electrolyte solution 7 contains a chelating agent, and the molar concentration of the chelating agent is 1.4 mol/L or higher.

公开(公告)号：US20180321186A1

公开(公告)日：2018-11-08

申请号：US15586849

申请日：2017-05-04

申请人： Michael Looney ,  GuangYang Qu

发明人： Michael Looney ,  GuangYang Qu

IPC分类号： G01N27/416 ,  G01N27/404 ,  G01N27/12

CPC分类号： G01N27/4163 ,  G01N27/122 ,  G01N27/404

摘要： An impedance in an electrochemical gas sensor can be measured by connecting at least one pin in an integrated circuit to at least one electrode in an electrochemical gas sensor, using a damping capacitor to connect the at least one pin in the integrated circuit to an electrical ground, applying a voltage to the electrochemical gas sensor to provide a bias voltage to at least one electrode in the electrochemical gas sensor, receiving a current from at least one electrode in the electrochemical gas sensor, determining a measured gas amount from the received current, activating a switch located within the integrated circuit to isolate the damping capacitor from the at least one pin in the integrated circuit, and measuring an impedance of the electrochemical gas sensor using an excitation signal while the at least one damping capacitor is isolated from the at least one electrode in the electrochemical gas sensor.

公开(公告)号：US20180143157A1

公开(公告)日：2018-05-24

申请号：US15877178

申请日：2018-01-22

申请人： Honeywell International Inc.

发明人： Neils Hansen

IPC分类号： G01N27/404 ,  G01N27/413 ,  G01N33/00

CPC分类号： G01N27/4072 ,  G01N27/404 ,  G01N27/4045 ,  G01N27/406 ,  G01N27/413 ,  G01N33/0009 ,  H01M2/04 ,  H01M4/02

摘要： Embodiments of the disclosure include an electrochemical sensor comprising a housing defining a reservoir; a sensing electrode; a counter electrode; at least one separator retaining an electrolyte, wherein the electrolyte provides an ionically conductive pathway between each of the sensing electrode and the counter electrode within the housing; and a plurality of channels located on the interior of the reservoir, operable to transport electrolyte from the reservoir into the separator.

公开(公告)号：US20180120252A1

公开(公告)日：2018-05-03

申请号：US15790346

申请日：2017-10-23

申请人： Endress+Hauser Conducta GmbH+Co. KG

发明人： Erik Hennings ,  Jens Vettermann

IPC分类号： G01N27/404

CPC分类号： G01N27/404

摘要： The present disclosure relates to a measuring probe for measuring a concentration of an analyte in a measuring medium represented by a measured variable, including a probe housing having a first housing part and a second housing part, the first housing part being cap shaped closed on a front end by a sensor membrane and detachably connected to the second housing part on a rear end opposite the front end, such that the second housing part closes the cap at the rear end, and the first and the second housing parts define a probe interior sealed by the sensor membrane, a fluid electroyte contained within the probe interior, an overflow channel in communication with the probe interior, and a seal adjacent the probe interior so as to seal the probe interior from the exterior of the measurement probe and simultaneously seal off the overflow channel.

公开(公告)号：US09897570B2

公开(公告)日：2018-02-20

申请号：US14896335

申请日：2014-08-07

申请人： HORIBA ADVANCED TECHNO, Co., Ltd.

发明人： Kentaro Inoue ,  Riichiro Suzuki

IPC分类号： G01N27/416 ,  G01N27/404

CPC分类号： G01N27/4162 ,  G01N27/404 ,  G01N27/4163

摘要： In order to improve measurement accuracy by accurately calibrating sensitivity of a dissolved oxygen meter without impairing easiness in calibration, the present invention includes a dissolved oxygen measuring device that includes a cell to be loaded with a sample solution, and a dissolved oxygen meter that is attached to the cell and measures an oxygen concentration in the sample solution; and a mode switching mechanism to switch between a measurement mode, in which a sensor surface of the dissolved oxygen meter is substantially in contact with the sample solution in the cell, and a calibration mode, in which the sensor surface is substantially not in contact with the sample solution in the cell, by feeding air into the cell through a feed port disposed on the cell, and by discharging part of the sample solution through a discharge port disposed on the cell.

公开(公告)号：US09829461B2

公开(公告)日：2017-11-28

申请号：US14648238

申请日：2013-11-15

申请人： HORIBA Advanced Techno, Co., Ltd.

发明人： Riichiro Suzuki ,  Kentaro Inoue

IPC分类号： G01N27/404

CPC分类号： G01N27/404

摘要： A measuring device comprises a guard electrode that is arranged around a cathode, reduces oxygen that is not from an oxygen permeable membrane, and inhibits the oxygen from reaching the cathode. The guard electrode is electrically connected to an anode through a resistor having a prescribed resistance.

公开(公告)号：US20170131228A1

公开(公告)日：2017-05-11

申请号：US15348163

申请日：2016-11-10

申请人： Dräger Safety AG & Co. KGaA

发明人： Joachim GEHRT ,  Susanne SCHAEFER

IPC分类号： G01N27/40 ,  B29C65/48 ,  B29C65/00 ,  G01N27/403

CPC分类号： G01N27/40 ,  B29C65/02 ,  B29C65/04 ,  B29C65/08 ,  B29C65/18 ,  B29C65/38 ,  B29C65/4815 ,  B29C65/7891 ,  B29C66/00441 ,  B29C66/1122 ,  B29C66/30325 ,  B29C66/45 ,  B29C66/71 ,  B29C66/712 ,  B29C66/7212 ,  B29C66/7294 ,  B29C66/73171 ,  B29C66/7352 ,  B29C66/73521 ,  B29C66/7392 ,  B29C66/7465 ,  B29C66/8122 ,  B29C66/81433 ,  B29C66/82 ,  B29C66/8322 ,  B29C66/83411 ,  B29K2105/0854 ,  B29K2227/18 ,  B29L2031/34 ,  B32B37/22 ,  B32B38/04 ,  G01N27/403 ,  G01N27/404 ,  B29K2827/18 ,  B29K2023/06 ,  B29K2027/06 ,  B29K2023/083

摘要： An electrolyte conductor (1) has a nonwoven fabric (2), onto which a plastic film (3) is laminated. A process is provided for the manufacture of the electrolyte conductor (1). An electrochemical gas sensor (10) is provided with such an electrolyte conductor (1). A gas-measuring device is provided with such a gas sensor (10).

公开(公告)号：US20170102355A1

公开(公告)日：2017-04-13

申请号：US14879738

申请日：2015-10-09

申请人： Patrick M. McGuinness ,  Seamus P. Whiston ,  William A. Lane ,  Thomas G. O'Dwyer ,  John Jude O'Donnell ,  Bernard Stenson ,  Shane Geary ,  Helen Berney ,  Raymond J. Speer

发明人： Patrick M. McGuinness ,  Seamus P. Whiston ,  William A. Lane ,  Thomas G. O'Dwyer ,  John Jude O'Donnell ,  Bernard Stenson ,  Shane Geary ,  Helen Berney ,  Raymond J. Speer

IPC分类号： G01N27/413 ,  H01G9/00 ,  H01G9/22

CPC分类号： G01N27/413 ,  G01N27/404 ,  H01G9/0029 ,  H01G9/22

摘要： It may be desirable to sense the concentration of a gas in another gas. This measurement may be important to warn of impending danger. Gas sensors may be made in batches by a manual process, leading to large variations in sensor performance between batches and indeed between sensors in a batch. This means the sensors often need individual calibration before use. The present approach to sensor design can make use of integrated circuit manufacturing techniques to give rise to sensors with well-matched and reproducible characteristics.