Flame 3D temperature field reconstruction based on Damped LSQR-LMBC *

Light field camera can overcome the problems of complex optical path and difficult synchronous trigger of radiation temperature measurement multi camera system, which has its unique advantages in three-dimensional temperature reconstruction of radiation imaging


Fig. 10 .
Fig.10.Calibration fitting curve of gray value and radiation intensity of light field image.

Fig. 13 .
Fig.13.Measurement of butane flame temperature using thermocouples: (a) Thermocouple temperature measurement experiment diagram; (b) Location diagram of thermocouple fixed-point temperature measurement.

Flame
3D temperature field reconstruction based on Damped LSQR-LMBC * Shan Liang 1) Zhao Teng-Fei 1) Huang Hui-Yun 1) Hong Bo 1) Kong Ming 2) † 1) (Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering ,China Jiliang University, Zhejiang 310018, China) 2) (College of Metrology & Measurement Engineering ,China Jiliang University, Hangzhou，Zhejiang 310018，China) AbstractLight field camera can overcome the problems of complex optical path and difficult synchronous trigger of radiation temperature measurement multi camera system, which has its unique advantages in three-dimensional temperature reconstruction of radiation imaging.

Table 1 .
Comparison of relative errors of temperature reconstruction results of LSQR and Damped LSQR.

Table 2 .
Comparison of Damped LSQR-LMBC reconstruction temperature and thermocouple correction temperature.