Title:
SELF-PRE-WARNING GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/223674
Kind Code:
A1
Abstract:
Disclosed is a self-pre-warning gas sensor, comprising: an end cover (110), a housing (120) and a plurality of gas sensing elements (130); wherein the end cover (110) is disposed at the top of the housing (120), and the end cover (110) is provided with an air outlet (111); the housing (120) comprises a side wall and a bottom surface, and an air inlet (121) is opened on the bottom surface of the housing, the housing has a hollow structure to form an air flow passage, the air flow passage communicates with the air inlet (121) and the air outlet (111), so that the airflow enters the airflow passage via the air inlet (121) and flows out via the air outlet (111); a plurality of gas sensing elements (130) are disposed in the housing; when the airflow enters the airflow passage via the air inlet (121), the gas sensing element generates a corresponding electrical signal due to the airflow. By means of the technical solution provided in the present invention, whether a gas sensing element is in an abnormal state can be conveniently learnt according to electrical signals generated by the plurality of gas sensing elements.
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Inventors:
HSU CHARLES (CN)
ZHONG QIANG (CN)
ZHAO HAO (CN)
ZHONG QIANG (CN)
ZHAO HAO (CN)
Application Number:
PCT/CN2017/119439
Publication Date:
December 13, 2018
Filing Date:
December 28, 2017
Export Citation:
Assignee:
NAZHIYUAN TECH TANGSHAN LLC (CN)
International Classes:
G01F3/22; A61B5/091; G01N27/00
Foreign References:
| CN204540828U | 2015-08-12 | |||
| CN201514238U | 2010-06-23 | |||
| CN104363830A | 2015-02-18 | |||
| CN105982361A | 2016-10-05 | |||
| US5405121A | 1995-04-11 |
Attorney, Agent or Firm:
HYLANDS LAW FIRM (CN)
Download PDF:
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