公开(公告)号：US20200333292A1

公开(公告)日：2020-10-22

申请号：US16763334

申请日：2017-11-20

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Sam SU ,  Bing CHEN ,  Junhui ZHANG ,  Feng LIANG

IPC: G01N27/62

Abstract: Embodiments relate generally to systems and methods for a low profile PID typically comprising a flexible substrate; two or more electrodes containing an array of holes; a spacer with one or more holes; and two or more contacts corresponding to the electrodes. Typically, the unfolded flexible substrate defines a plane, and the electrodes are disposed on the flexible substrate such that when the flexible substrate is folded, one electrode is located on a top plane and another electrode is located on a bottom plane and the spacer is disposed between the electrodes to form an ionization chamber for use with a UV radiation source.

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：US20190232231A1

公开(公告)日：2019-08-01

申请号：US16336970

申请日：2016-10-05

Applicant: Qidao LIN ,  Feng LIANG ,  Yong TANG ,  HONEYWELL INTERNATIONAL INC.

Inventor： Qidao LIN ,  Feng LIANG ,  Yong TANG

IPC: B01D63/08 ,  B01D53/26 ,  B01D46/54 ,  B01D71/36 ,  B01D39/16 ,  G01N33/00

CPC classification number: B01D63/08 ,  B01D39/1623 ,  B01D46/543 ,  B01D53/265 ,  B01D53/268 ,  B01D63/00 ,  B01D69/02 ,  B01D69/06 ,  B01D71/26 ,  B01D71/36 ,  B01D2239/0618 ,  B01D2313/08 ,  B01D2313/14 ,  B01D2313/20 ,  B01D2313/21 ,  B01D2313/23 ,  B01D2319/025 ,  B01D2319/06 ,  B01D2325/38 ,  G01N33/0009

Abstract: Embodiments relate generally to a filter (110), for example, for attachment onto a gas detector device or a gas sensor, and attempt to improve the efficiency and service life of the filter (110). Embodiments typically comprise a dustproof membrane (114) and a waterproof membrane (113). Some embodiments may also comprise a splash-proof cap (130) and/or features to reduce negative pressure on the filter (110).

公开(公告)号：US20230408472A1

公开(公告)日：2023-12-21

申请号：US18241107

申请日：2023-08-31

Applicant: Honeywell International Inc.

Inventor： Chuang HUANG ,  Tengfei ZHANG ,  Bing CHEN ,  Feng LIANG

IPC: G01N33/00 ,  G01N27/66

CPC classification number: G01N33/0026 ,  G01N27/66 ,  G01N33/0029

Abstract: Methods and systems for detecting and limiting the water in a photoionization detector are provided. The method may include powering off a lamp configured to ionize particles of air. The method may also include monitoring a signal from the photoionization detector. The signal may be monitored based on a current between a signal electrode and a bias electrode. In an instance the signal is above a signal threshold, the method may also include electrolyzing one or more particles of water present in the photoionization detector by closing a leakage switch in order to allow current to flow through the bias electrode and the signal electrode. In an instance the signal is below the signal threshold, the method may include powering on the lamp to begin photoionization detection. Corresponding systems are also provided.

公开(公告)号：US20220143559A1

公开(公告)日：2022-05-12

申请号：US17582657

申请日：2022-01-24

Applicant: Honeywell International Inc.

Inventor： Qidao LIN ,  Feng LIANG ,  Yong TANG

IPC: B01D63/08 ,  B01D53/26 ,  B01D46/54 ,  B01D53/22 ,  B01D71/26 ,  B01D71/36 ,  B01D69/02 ,  B01D69/06 ,  B01D39/16

Abstract: Embodiments relate generally to a filter, for example, for attachment onto a gas detector device or a gas sensor, and attempt to improve the efficiency and service life of the filter. Embodiments typically comprise a dustproof membrane and a waterproof membrane. Some embodiments may also comprise a splash-proof cap and/or features to reduce negative pressure on the filters.

公开(公告)号：US20210172899A1

公开(公告)日：2021-06-10

申请号：US16762872

申请日：2017-10-26

Applicant: Honeywell International Inc.

Inventor： Lei XIAO ,  Keith Francis Edwin PRATT ,  Qinghui MU ,  Feng LIANG

IPC: G01N27/407 ,  G01N33/00 ,  G01N27/27

Abstract: Systems and methods for determining the concentration of a second target gas while in the presence of a first target gas. A method may comprise operating a first sensor (202, 302) under a first operating condition, wherein the first sensor (202, 302) is part of a sensor assembly (200); operating a second sensor (204, 304) under a second operating condition, wherein the second sensor (204, 304) is part of the sensor assembly (200), and wherein the second operating condition is different from the first operating condition; detecting at least one target gas by the first sensor (202, 302); detecting at least one target gas by the second sensor (204, 304); processing a signal output from the first sensor (202, 302) with a signal output from the second sensor (204, 304); and determining a concentration of at least one of the first target gas and second target gas based on the processed output signals.

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.