公开(公告)号：US20230341353A1

公开(公告)日：2023-10-26

申请号：US18295884

申请日：2023-04-05

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Fan YANG ,  Renbing TIAN ,  Hao ZHU ,  Feng LIANG ,  Jun TANG ,  Peipei LIU

IPC: G01N27/66 ,  G01N33/00

CPC classification number: G01N27/66 ,  G01N33/0047

Abstract: An example photoionization detector is provided. The example photoionization detector includes an insulation spacer component and a signal collection electrode component disposed on the first surface of the insulation spacer component. In some examples, the signal collection electrode component includes a first electrode layer and a second electrode layer.

公开(公告)号：US20210003542A1

公开(公告)日：2021-01-07

申请号：US16916287

申请日：2020-06-30

Applicant: HONEYWELL INTERNATIONAL INC.

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

IPC: G01N33/00 ,  G01N27/66

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：US20230127252A1

公开(公告)日：2023-04-27

申请号：US17938829

申请日：2022-10-07

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Feng LIANG ,  Hongling LV ,  Pengjian GUAN ,  Wenjuan LI ,  Lei XIAO ,  Yan ZHOU ,  Yu HU

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

Abstract: Methods, apparatuses and systems for providing gas detecting apparatuses (e.g., electrochemical detectors) are disclosed herein. An example gas detecting apparatus may comprise a sensing component comprising: a housing configured to receive a sample gaseous substance comprising a target gaseous substance and an interferent gaseous substance; a reference electrode, disposed within the housing; a counter electrode disposed within the housing; and a sensing electrode disposed within the housing that is operatively coupled to a bias voltage circuit.

公开(公告)号：US20230125226A1

公开(公告)日：2023-04-27

申请号：US18146147

申请日：2022-12-23

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Lei XIAO ,  Feng LIANG ,  Jianming JIN ,  Guoqiang NI ,  Qinghui MU ,  Sam SU

IPC: G01N27/407 ,  G01N27/406

Abstract: Apparatus and associated methods relate to a one-piece structure for a solid electrolyte chemical sensor (SECS) having a first surface defining a cavity designed to receive a substrate that retains a solid electrolyte, an internal water impermeable coating on at least a portion of the first surface, a second surface that is substantially coplanar with an adjacent peripheral edge of a top surface of the substrate when the substrate is received in the cavity, and a plurality of electrical contacts disposed on the second surface adapted to electrically couple with the electrodes on the substrate when the substrate is received in the cavity and electrical paths are provided between respective electrical contacts and electrodes. In an illustrative example, the internal water impermeable coating may include a metallic material, such as gold. In various embodiments, the one-piece structure may advantageously prevent water loss from both the sensor substrate and the SECS.

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：US20190271662A1

公开(公告)日：2019-09-05

申请号：US16349068

申请日：2016-11-11

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Aimin SU ,  Zhongxing CAO ,  Bing CHEN ,  Feng LIANG

IPC: G01N27/70 ,  H01J61/35 ,  H01J61/16

Abstract: Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102). Additional embodiments include a method of forming an ultraviolet lamp (100) for use with a photoionization detector, the method comprising applying at least one layer of a coating (120) onto an inner surface (110) of a sealed tube (102); sealing a crystal window (112) onto the sealed tube (102); filling the sealed tube (102) with at least one gas; sealing the sealed tube (102) containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (102); and directing the generated ultraviolet radiation through the crystal window (112) toward a sample gas in the photoionization detector.

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：US20230071346A1

公开(公告)日：2023-03-09

申请号：US17819361

申请日：2022-08-12

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Yifan YE ,  Feng LIANG ,  Lei XIAO ,  Jiafu XIE ,  Jingmeng PENG

IPC: G01N27/404 ,  G01N33/00

Abstract: Methods, apparatuses and systems for providing gas detecting apparatuses (e.g., electrochemical detectors) are disclosed herein. An example gas detecting apparatus may comprise a sensing component comprising: a first sensing electrode configured to generate a first concentration level indication associated with a first portion of a sample gaseous substance disposed within the sensing component; and a second sensing electrode operatively coupled to a filtering element that is configured to absorb at least one substance from the sample gaseous substance, wherein the second sensing electrode is configured to generate a second concentration level indication associated with a second portion of the sample gaseous substance.

公开(公告)号：US20200373147A1

公开(公告)日：2020-11-26

申请号：US16881712

申请日：2020-05-22

Applicant: HONEYWELL INTERNATIONAL INC.

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

IPC: H01J61/56 ,  G01N33/00

Abstract: Methods, apparatuses, and systems for providing an alternating current (AC) voltage supply for a photoionization detector lamp from a direct current (DC) voltage source are provided. An example apparatus may include a DC voltage to DC voltage (DC/DC) converter circuitry, and a feedback circuitry that is electronically coupled to the DC/DC converter circuitry and converts a reference AC voltage to a feedback DC voltage for the DC/DC converter circuitry. In some examples, the feedback circuitry may be electronically coupled to a DC voltage to AC voltage (DC/AC) converting circuitry to obtain the reference AC voltage.