US 12,379,359 B2
Methods, apparatuses, and systems for calibrating gas detecting apparatuses
Xiangcai He, Charlotte, NC (US); Chuang Huang, Charlotte, NC (US); Li Liu, Charlotte, NC (US); and Yong Wang, Charlotte, NC (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Apr. 11, 2024, as Appl. No. 18/633,261.
Application 18/633,261 is a continuation of application No. 17/804,951, filed on Jun. 1, 2022, granted, now 11,982,658.
Claims priority of application No. 202110666485.8 (CN), filed on Jun. 16, 2021.
Prior Publication US 2024/0255479 A1, Aug. 1, 2024
Int. Cl. G01N 33/00 (2006.01); G01M 3/38 (2006.01)
CPC G01N 33/0006 (2013.01) [G01M 3/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A calibration apparatus configured to generate a testing gaseous substance, the calibration apparatus comprising:
a gas flow channel comprising at least one gas inlet configured to convey a background gaseous substance within at least a portion of the calibration apparatus;
a first valve configured to provide the testing gaseous substance to a gas detecting apparatus operatively connected to the calibration apparatus;
a nebulizing element configured to generate the testing gaseous substance by transforming a testing solution in conjunction with the background gaseous substance;
a pressure control element configured to maintain a constant air pressure within the portion of the calibration apparatus; and
a controller component in electronic communication with the nebulizing element and the pressure control element, wherein the controller component is configured to:
in response to determining that the testing gaseous substance satisfies one or more target parameters, transmit a control indication to actuate the first valve to cause at least a portion of the testing gaseous substance to enter the gas detecting apparatus, and
wherein the pressure control element is further configured to replace the portion of the testing gaseous substance in the gas detecting apparatus with air to maintain the constant air pressure.