An improved algorithm of temperature compensation for a near infrared multiple-acquisition system based on two-dimensional regression analysis.
The near infrared (NIR) spectroscopy analytical technique is one of the most advanced and promising tools in many domains. NIR acquisition is easily influenced by temperature, thereby affecting qualitative and quantitative analyses. In this paper, a temperature compensation model was established between NIR signals and output voltage values based on two-dimensional regression analysis. The effectiveness of the proposed compensation scheme was experimentally demonstrated by the measurement of six super luminescent diode sources at 293-313 K. The coefficient of variation was decreased 2-fold with this compensation algorithm. The results indicated that it was suitable for various NIR spectral acquisition systems with lower complexity and a higher signal-noise-ratio after being applied to an acousto-optic-tunable-filter system.
State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China.
Xu-yao
XY
Yu
Key Laboratory of Biomedical Testing Technology and Instruments in Tianjin, Tianjin University, Tianjin 300072, China.
Jia-bao
JB
An
Key Laboratory of Biomedical Testing Technology and Instruments in Tianjin, Tianjin University, Tianjin 300072, China.
Hui
H
Yu
State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China.
Yao
Y
Shi
Key Laboratory of Biomedical Testing Technology and Instruments in Tianjin, Tianjin University, Tianjin 300072, China.
Yong
Y
Deng
Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
Jia-lu
JL
Zhou
State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China.
Ke-xin
KX
Xu
D000162:Acoustics; D000465:Algorithms; D055096:Optical Devices; D012044:Regression Analysis; D019265:Spectroscopy, Near-Infrared / Q000295:instrumentation*; D013696:Temperature