Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Multi-wavelength radiometric thermometry data processing algorithm based on the BFGS algorithm

Not Accessible

Your library or personal account may give you access

Abstract

Multi-wavelength radiometric thermometry has a wide application prospect in many fields. However, due to unknown emissivity, the data processing algorithm remains a difficult problem. The Broyden–Fletcher–Goldfarb–Shanno (BFGS) algorithm is proposed to inverse true temperature and spectral emissivity without assuming the emissivity model. The BFGS algorithm can automatically identify the emissivity models of different trends. These simulation results show that given different initial emissivity has no significant influence on the inverse temperature and emissivity. Then, we select 0.5 as the initial emissivity and carry out the simulation experiments at 800 and 900 K, respectively. The maximum absolute error of temperature is less than 3.5 K and the computation time is less than 0.2 s. Thus, the algorithm has high precision and efficiency. Finally, the verification experiment indicates that the BFGS algorithm is effective and reliable. The proposed method can be applied to real-time temperature measurement in many industrial processes.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Fast data processing method for multispectral radiation thermometry based on Euclidean distance optimization

Kaihua Zhang, Yinxin He, Kun Yu, and Yufang Liu
Opt. Express 32(2) 1342-1356 (2024)

Data processing method for simultaneous estimation of temperature and emissivity in multispectral thermometry

Zhuangtao Tian, Kaihua Zhang, Yanfen Xu, Kun Yu, and Yufang Liu
Opt. Express 30(20) 35381-35397 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (8)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved