US 12,392,748 B2
Methods, apparatuses, and systems providing gas detecting apparatuses and sensing components with filtering elements
Yifan Ye, Charlotte, NC (US); Feng Liang, Charlotte, NC (US); Lei Xiao, Charlotte, NC (US); Jiafu Xie, Charlotte, NC (US); and Jingmeng Peng, Charlotte, NC (US)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed by HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Filed on Aug. 12, 2022, as Appl. No. 17/819,361.
Claims priority of application No. 202111012478.2 (CN), filed on Aug. 31, 2021.
Prior Publication US 2023/0071346 A1, Mar. 9, 2023
Int. Cl. G01N 27/404 (2006.01); G01N 33/00 (2006.01)
CPC G01N 27/4045 (2013.01) [G01N 33/0011 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A gas detecting apparatus comprising a sensing component, the 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 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, wherein the filtering element comprises Pb(CH3COO)2, Zn(NO3)2, Ni(NO3)2, Co(NO3)2, Fe(NO3)2 or Mn(NO3)2.