公开(公告)号：US20200378921A1

公开(公告)日：2020-12-03

申请号：US16884592

申请日：2020-05-27

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Ling LIU ,  Feng LIANG

IPC: G01N27/416 ,  G01N33/00

Abstract: Methods, apparatuses, and systems for calculating a compensated reading of a gas sensing apparatus are provided. An example method includes causing a first supply of a working voltage to a sensing circuitry of the gas sensing apparatus, determining a first output of the sensing circuitry, causing a second supply of a stimulate voltage to the sensing circuitry, determining a second output of the sensing circuitry, and calculating a compensated reading of the gas sensing apparatus based at least in part on the first output and the second output.

公开(公告)号：US20200025706A1

公开(公告)日：2020-01-23

申请号：US16329254

申请日：2016-08-31

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Yuzhong YU ,  Ling LIU ,  Feng LIANG

IPC: G01N27/30 ,  G01N27/38 ,  G01N27/403

Abstract: Methods and systems for identifying contamination of an electrochemical sensor (10) and cleaning the electrochemical sensor (10) are provided. A method may comprise scanning the sensor (10) for the first time using CV to generate a reference set of readings; scanning the sensor (10) for the second time after the sensor (10) has been employed; comparing a second set of readings from the second CV scan to the reference set of readings; when the second set of readings is different from the reference set of readings, determining that the sensor (10) potential has shifted; scanning the sensor (10) for the third time to clean one or more elements of the sensor (10); scanning the sensor (10) for the fourth time; comparing a fourth set of readings from the fourth CV scan to the second set of readings; and determining that the potential of the sensor (10) has shifted due to pollution of the sensor (10), and/or that the sensor (10) can be further cleaned.

公开(公告)号：US20210116411A1

公开(公告)日：2021-04-22

申请号：US17128726

申请日：2020-12-21

Applicant: Honeywell International Inc.

Inventor： Ling LIU ,  Yan ZHANG ,  Qian ZHENG

IPC: G01N27/403 ,  C23C30/00 ,  G01N27/404 ,  H01M4/88

Abstract: A gas detector includes an electrochemical gas sensor. The sensor includes a plurality of electrodes. At least one of the electrodes is formed of a catalyst/binder slurry which is halftone printed onto a substrate. The composite printed element and substrate are sintered to form the electrode.

公开(公告)号：US20240345022A1

公开(公告)日：2024-10-17

申请号：US18750983

申请日：2024-06-21

Applicant: Honeywell International Inc.

Inventor： Ling LIU ,  Feng LIANG

IPC: G01N27/416 ,  G01N33/00

CPC classification number: G01N27/4163 ,  G01N33/0047

Abstract: Methods, apparatuses, and systems for calculating a compensated reading of a gas sensing apparatus are provided. An example method includes causing a first supply of a working voltage to a sensing circuitry of the gas sensing apparatus, determining a first output of the sensing circuitry, causing a second supply of a stimulate voltage to the sensing circuitry, determining a second output of the sensing circuitry, and calculating a compensated reading of the gas sensing apparatus based at least in part on the first output and the second output.

公开(公告)号：US20200025733A1

公开(公告)日：2020-01-23

申请号：US16516368

申请日：2019-07-19

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Ling LIU ,  Xiaoyi YAN ,  Qinghui MU ,  Na WEI ,  Lei XIAO ,  Yang ZHANG ,  Huiping YAO ,  Feng LIANG

IPC: G01N33/00

Abstract: The present invention relates to a method for detecting a gas concentration using a gas detection device, comprising: determining a first relationship between a baseline drift of the gas detection device with respect to a gas concentration and an environmental temperature and performing, based on the baseline drift of the gas detection device with respect to a gas having a first temperature, a first compensation on a gas concentration output value of the gas having the first temperature determined by the gas detection device. With such a method, a gas concentration check result is more accurate, and the gas detection device can be applied to a wider range of application scenarios.

公开(公告)号：US20190094171A1

公开(公告)日：2019-03-28

申请号：US16146476

申请日：2018-09-28

Applicant: Honeywell International Inc.

Inventor： Ling LIU ,  Yan ZHANG ,  Qian ZHENG

IPC: G01N27/403 ,  G01N27/404 ,  C23C30/00 ,  H01M4/88 ,  H01M4/86 ,  H01M4/90

Abstract: A gas detector includes an electrochemical gas sensor. The sensor includes a plurality of electrodes. At least one of the electrodes is formed of a catalyst/binder slurry which is halftone printed onto a substrate. The composite printed element and substrate are sintered to form the electrode.

公开(公告)号：US20200292486A1

公开(公告)日：2020-09-17

申请号：US16760057

申请日：2017-11-01

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Ling LIU ,  Lei XIAO ,  Jianming JIN ,  Yan ZHANG ,  Feng LIANG

IPC: G01N27/413

Abstract: Embodiments relate generally to systems and methods for operating an electrochemical oxygen sensor at low relative humidity (i.e., 15% RH or less). A method may comprise operating an electrochemical sensor to detect oxygen in the field, wherein the electrochemical sensor comprises one or more electrodes and an electrolyte configured to electrically connect the one or more electrodes with an initial concentration of approximately 8 M sulfuric acid; and maintaining the sensor accuracy during the operation of the sensor to detect oxygen in the field, wherein the relative humidity of the environment is approximately 15% or less, without recalibrating the sensor using a source of nitrogen.

公开(公告)号：US20190317043A1

公开(公告)日：2019-10-17

申请号：US16317097

申请日：2016-07-12

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Na WEI ,  Yuzhong YU ,  Ling LIU

IPC: G01N27/407 ,  G01N27/30

Abstract: An electrochemical hydrogen cyanide sensor (1) comprises a housing (10) comprising an opening (2) allowing gas to enter the sensor (1); an electrolyte disposed within the housing (10); a plurality of electrodes in contact with the electrolyte within the housing (10), wherein the plurality of electrodes comprise a working electrode (5) and a counter electrode (7), and wherein the electrodes comprise a metal catalytic material; and a filter (3) operable to cover the opening (2) of the housing (10), and prevent hydrogen sulfide from reaching the electrodes, wherein the filter (3) comprises silver sulfate layered onto a polytetrafluoroethylene support material.