US 12,306,090 B2
Gas cell and method of forming the same
Weiguo Chen, Singapore (SG); and Lennon Yao Ting Lee, Singapore (SG)
Assigned to AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, Singapore (SG)
Appl. No. 18/042,681
Filed by AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, Singapore (SG)
PCT Filed Jul. 26, 2021, PCT No. PCT/SG2021/050435
§ 371(c)(1), (2) Date Feb. 23, 2023,
PCT Pub. No. WO2022/055416, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 10202008801S (SG), filed on Sep. 9, 2020.
Prior Publication US 2023/0366813 A1, Nov. 16, 2023
Int. Cl. G01N 21/05 (2006.01); G01N 21/01 (2006.01); G01N 21/3504 (2014.01)
CPC G01N 21/05 (2013.01) [G01N 21/3504 (2013.01); G01N 2021/0112 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas cell comprising:
a chamber body;
a chamber lid cooperating with the chamber body to form a space;
an infrared source provided in a through hole of the chamber lid such that the infrared source extends through a thickness of the chamber lid;
a detector provided in a through hole of the chamber body;
an optical chip arranged within the space such that the optical chip is between the infrared source and the detector;
a first O-ring arranged between the chamber lid and the chamber body;
a second O-ring arranged between the optical chip and the chamber lid; and
a third O-ring arranged between the optical chip and the chamber body;
wherein the chamber body includes an inlet and an outlet so that the chamber body is configured to allow a gas to flow from the inlet through the optical chip to the outlet.