公开(公告)号：US20230251225A1

公开(公告)日：2023-08-10

申请号：US18161996

申请日：2023-01-31

Applicant: Honeywell International Inc.

Inventor： Chang LIU ,  Guangli XIE ,  Zhiguo WANG ,  Bo CHEN ,  Yang ZHANG

IPC: G01N27/66

CPC classification number: G01N27/66

Abstract: The present utility model relates to a device for improving gas detection in a photoionization detector. A gas detector is provided. The device reduces interference of photoelectric noise on the reading of the gas detector for target gases such as volatile organic compounds.

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：US20220011266A1

公开(公告)日：2022-01-13

申请号：US17483157

申请日：2021-09-23

Applicant: Honeywell International Inc.

Inventor： Chang LIU ,  Guangli XIE ,  Zhiguo WANG ,  Bo CHEN ,  Yang ZHANG

IPC: G01N27/66

Abstract: The present utility model relates to a device for improving gas detection in a photoionization detector. A gas detector is provided. The device reduces interference of photoelectric noise on the reading of the gas detector for target gases such as volatile organic compounds.

公开(公告)号：US20200278320A1

公开(公告)日：2020-09-03

申请号：US16804066

申请日：2020-02-28

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Chang LIU ,  Guangli XIE ,  Zhiguo WANG ,  Bo CHEN ,  Yang ZHANG

IPC: G01N27/66

Abstract: The present utility model relates to a device for improving gas detection in a photoionization detector. A gas detector is provided. The device reduces interference of photoelectric noise on the reading of the gas detector for target gases such as volatile organic compounds.