Design of a Near-Infrared Spectroscopic System for Automatic Detection of Grain Quality Detection
5th Optics Young Scientist Summit (OYSS 2022)（2022）
Abstract
A near-infrared spectroscopy system is developed to measure accurately content of grain nutrient. The spectroscopic system mainly consists of near-infrared spectrometer, halogen lamp, stepping motor module, light attenuator, volume weight module. Since the absorbance of grain in NIR range is relatively high, a new type of light attenuator is developed to precisely measure the reference spectra. The method to obtain the transmission spectra is discussed in this study. The control system running on Windows operation system is also developed to acquire spectral data and process the obtained data. The control procedures are presented in detail. The spectroscopic system can automatically complete the measurement by the control system. The results showed that the present design can obtain the transmission spectra of grain effectivly
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Near-Infrared Spectroscopy
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