US 12,492,967 B2
Gas measuring device and gas measuring system
Manase Mizutani, Nagoya (JP); Yoshihisa Suzuki, Nagoya (JP); Toshihiko Noda, Toyohashi (JP); and Kazuaki Sawada, Toyohashi (JP)
Assigned to SINTOKOGIO, LTD., Nagoya (JP); and National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Toyohashi (JP)
Filed by SINTOKOGIO, LTD., Nagoya (JP); and National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Toyohashi (JP)
Filed on Mar. 31, 2023, as Appl. No. 18/129,302.
Claims priority of application No. 2022-063053 (JP), filed on Apr. 5, 2022.
Prior Publication US 2023/0314289 A1, Oct. 5, 2023
Int. Cl. G01N 1/22 (2006.01); G01N 27/62 (2021.01)
CPC G01N 1/2214 (2013.01) [G01N 1/2205 (2013.01); G01N 1/2247 (2013.01); G01N 27/62 (2013.01); G01N 2001/227 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A gas measuring device comprising:
a plate-like filter including a principal surface on which a plurality of slits parallel to one another are formed, the principal surface being parallel to a flow direction of gas, and an extending direction of each of the plurality of slits being orthogonal to the flow direction of the gas, and configured to control traveling directions and traveling speeds of gas molecules based on molecular weights of the gas molecules by causing the gas molecules to pass, based on gravity, through slits corresponding to their respective molecular weights; and
a gas sensor configured to absorb the gas molecules of the gas, which have been rectified by the filter so that the gas molecules have reached different positions based on the molecular weights of the gas molecules, and to detect absorption positions and absorption amounts of the gas molecules,
wherein components of the gas are specified based on the absorption positions and the absorption amounts of the gas molecules.