Development of a new diffuse near-infrared food measuring

Jun Zhang; Renguan Piao

doi:10.1117/12.717264

6 November 2006 Development of a new diffuse near-infrared food measuring

Jun Zhang, Renguan Piao

Proceedings Volume 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence; 63573V (2006) https://doi.org/10.1117/12.717264
Event: Sixth International Symposium on Instrumentation and Control Technology, 2006, Beijing, China

Abstract

Industries from agriculture to petrochemistry have found near infrared (NIR) spectroscopic analysis useful for quality control and quantitative analysis of materials and products. The general chemical, polymer chemistry, petrochemistry, agriculture, food and textile industries are currently using NIR spectroscopic methods for analysis. In this study, we developed a new sort NIR instrument for food measuring. The instrument consists of a light source, 12 filters to the prismatic part. The special part is that we use a mirror to get two beams of light. And two PbS detectors were used. One detector collected the radiation of one light beam directly and the value was set as the standard instead the standard white surface. Another light beam irradiate the sample surface, and the diffuse light was collected by another detector. The value of the two detectors was compared and the absorbency was computed. We tested the performance of the NIR instrument in determining the protein and fat content of milk powder. The calibration showed the accuracy of the instrument in practice.

Citation Download Citation

Jun Zhang and Renguan Piao "Development of a new diffuse near-infrared food measuring", Proc. SPIE 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, 63573V (6 November 2006); https://doi.org/10.1117/12.717264

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KEYWORDS

Near infrared

Sensors

Proteins

Calibration

Spectrometers

Diffuse reflectance spectroscopy

Chemical analysis

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