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Updated: Jun 19, 2026
06:42
Conducting Hyperscanning Experiments with Functional Near-Infrared Spectroscopy
Published on: January 19, 2019
[Research on the near-infrared spectrometer system]
Xian-Yi Xiang1, Zhi-Yu Wen, Zai-Chuan Long
1Key Laboratory of Optoelectronic Technology and System of the Ministry of Education, Chongqing University, Chongqing 400030, China. xxy@mail.sdu.edu.cn
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|October 21, 2009
Summary
A new micro-near-infrared spectrometer system was developed for non-invasive food ingredient detection. This system achieves performance comparable to foreign products, enabling real-time quantitative analysis.
Area of Science:
- Spectroscopy
- Analytical Chemistry
- Instrumentation Engineering
Context:
- Near-infrared (NIR) spectroscopy is a powerful analytical technique.
- Non-invasive quantitative detection of food ingredients is crucial for quality control.
- Existing systems may lack portability or real-time capabilities for on-site applications.
Purpose:
- To develop a micro-near-infrared spectrometer system for on-line, real-time, non-invasive quantitative detection of food ingredients.
- To integrate spectrum test technology, stoichiometry, and computer technology into a compact system.
- To validate the performance of the developed micro-spectrometer prototype.
Summary:
- A micro-near-infrared spectrometer prototype was successfully developed, integrating spectrum test, stoichiometry, and computer technologies.
- The system operates in the 850-1690 nm wavelength range with an optical resolution below 10 nm, meeting international standards.
- LS-LWR modeling methods were employed, achieving a high correlation coefficient (0.995) and low RMSEP (0.06) for glucose solution quantification.
Impact:
- Enables rapid, non-destructive analysis of food composition directly on production lines.
- Provides a cost-effective and portable alternative to traditional laboratory-based analytical methods.
- Advances the field of applied spectroscopy for food safety and quality assurance.
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