US 11,867,616 B2
Optical detection system
Qiang Yao, Chongqing (CN); Shiling Zhang, Chongqing (CN); Yulong Miao, Chongqing (CN); Yongtao Chen, Chongqing (CN); and Xintian Li, Chongqing (CN)
Assigned to State Grid Chongqing Electric Power Co. Electric Power Research Institute, Chongqing (CN); and State Grid Corporation of China, Beijing (CN)
Appl. No. 17/251,810
Filed by State Grid Chongqing Electric Power Co. Electric Power Research Institute, Chongqing (CN); and State Grid Corporation of China, Beijing (CN)
PCT Filed Oct. 29, 2020, PCT No. PCT/CN2020/124769
§ 371(c)(1), (2) Date Dec. 13, 2020,
PCT Pub. No. WO2022/082838, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 202011126141.X (CN), filed on Oct. 20, 2020.
Prior Publication US 2022/0317032 A1, Oct. 6, 2022
Int. Cl. G01N 21/3504 (2014.01); G01J 3/42 (2006.01); G01N 21/39 (2006.01)
CPC G01N 21/3504 (2013.01) [G01J 3/42 (2013.01); G01N 21/39 (2013.01); G01J 2003/423 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical detection system, for detecting a decomposition product on a high-voltage device, comprising:
a measurement gas chamber applicable to be mounted on the high-voltage device and for communicating with a gas chamber of the high-voltage device; and
a measurement host,
wherein a collimator and a reflector are disposed on two sides of the measurement gas chamber respectively, and the measurement host is connected to the collimator; and
the collimator is configured for emitting measurement laser to the measurement gas chamber according to a laser signal sent by the measurement host, and receiving reflected laser from the reflector and transmitting the reflected laser to the measurement host,
wherein the measurement host comprises a laser device, a switching module, and an infrared detector;
the switching module is connected to the laser device and the infrared detector respectively; and
the switching module is configured for transmitting a laser signal from the laser device to the collimator, and transmitting the reflected laser from the collimator to the infrared detector.