US 12,392,665 B1
Water-mist-penetrating three-wavelength temperature measurement device and method for high-temperature environment
Xinping Guan, Shanghai (CN); Tiankai Jin, Shanghai (CN); Yuheng Qin, Shanghai (CN); Kaijie Wu, Shanghai (CN); Xiaojing Wen, Shanghai (CN); and Cailian Chen, Shanghai (CN)
Assigned to Shanghai Jiao Tong University, Shanghai (CN)
Filed by Shanghai Jiao Tong University, Shanghai (CN)
Filed on Mar. 5, 2025, as Appl. No. 19/071,370.
Claims priority of application No. 202510121008.1 (CN), filed on Jan. 24, 2025.
Int. Cl. G01J 5/08 (2022.01); G01J 5/061 (2022.01); G01J 5/0802 (2022.01); G01J 5/0875 (2022.01); G01J 5/10 (2006.01)
CPC G01J 5/0879 (2022.01) [G01J 5/061 (2013.01); G01J 5/0802 (2022.01); G01J 5/0814 (2022.01); G01J 5/0875 (2013.01); G01J 5/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A water-mist-penetrating three-wavelength temperature measurement device for an environment in steel hot rolling, comprising:
a housing, the housing provided with an optical aperture, the aperture configured to be able to permit passage of light signals emitted from a target to be measured;
a three-waveband beam splitting detection module, the three-waveband beam splitting detection module arranged in the housing, and comprising a trichroic prism, a first radiation detection assembly, a second radiation detection assembly and a third radiation detection assembly; the trichroic prism having an incident face, a first emission face, a second emission face, and a third emission face, and configured to be able to receive the light signals entering via the optical aperture through the incident face, and emit radiation signals having different wavelength bands through the first emission face, the second emission face, and the third emission face, respectively; the first radiation detection assembly configured to be able to receive a first radiation signal having a first wavelength band emitted from the first emission face, and convert the first radiation signal into a first electrical signal; the second radiation detection assembly configured to be able to receive a second radiation signal having a second wavelength band emitted from the second emission face, and convert the second radiation signal into a second electrical signal; the third radiation detection assembly configured to be able to receive a third radiation signal having a third wavelength band emitted from the third emission face, and convert the third radiation signal into a third electrical signal; and
a computing unit, the computing unit configured to be able to receive the first electrical signal, the second electrical signal, and the third electrical signal, and perform calculation and analysis to determine a temperature value of the target to be measured.