US 12,359,999 B2
Non-modulated infrared sensor for handheld halogen leak detector and quantitative detection method thereof
Shuangyun Li, Xuzhou (CN); Chong Lin, Xuzhou (CN); Zhongxiang Tang, Xuzhou (CN); and Chaofei Li, Xuzhou (CN)
Assigned to JIANGSU JINGCHUANG ELECTRONICS CO., LTD., Xuzhou (CN)
Filed by JIANGSU JINGCHUANG ELECTRONICS CO., LTD, Xuzhou (CN)
Filed on Oct. 10, 2022, as Appl. No. 17/963,186.
Claims priority of application No. 202111183044.9 (CN), filed on Oct. 11, 2021.
Prior Publication US 2023/0110457 A1, Apr. 13, 2023
Int. Cl. G01M 3/04 (2006.01)
CPC G01M 3/04 (2013.01) 6 Claims
OG exemplary drawing
 
1. A non-modulated infrared sensor for a halogen leak detector comprising:
an infrared absorption cell comprising;
a light source chamber connected to a first end of a gas chamber channel, the light source chamber having a gas inlet in communication with a target gas or a background gas, the gas inlet having a solenoid valve; and
an infrared-receiver chamber connected to a second end of the gas chamber channel, the infrared-receiver chamber having a gas outlet;
an infrared transmitter operably attached to the light source chamber;
an optical filter disposed between the light source chamber and the infrared transmitter;
an infrared receiver attached to the infrared-receiver chamber, the infrared receiver configured to send a signal by way of an amplification filter module and an analog-to-digital conversion module;
a processor configured to receive the signal and further configured to control the solenoid valve.