US 11,754,528 B2
Gas detection device
Yasuhito Hagiwara, Tokyo (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Aug. 22, 2022, as Appl. No. 17/893,089.
Application 17/893,089 is a continuation of application No. PCT/JP2021/007759, filed on Mar. 1, 2021.
Claims priority of application No. 2020-032568 (JP), filed on Feb. 28, 2020.
Prior Publication US 2022/0397555 A1, Dec. 15, 2022
Int. Cl. G01N 29/02 (2006.01); G01N 33/00 (2006.01)
CPC G01N 29/022 (2013.01) [G01N 33/0031 (2013.01); G01N 2291/021 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A gas detection device, comprising:
a casing including:
a gas introducing port,
a first chamber that communicates with the gas introducing port,
a second chamber that communicates with the first chamber,
a flow limiter that limits a flow of gas from the first chamber to the second chamber, and
a gas exhausting portion that communicates with the second chamber; and
a plurality of sensor elements disposed within the second chamber and having different detection sensitivities depending on a gas type.