Yan-de LIU, Jun-zheng WANG, Xiao-gang JIANG, Li-sha LI, Xuan HU, Hui-zhen CUI. Research on Vis/NIR Detection of Apple's SSC Based on Multi-Mode Adjustable Optical Mechanism[J]. Spectroscopy and Spectral Analysis, 2021, 41(7): 2064
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 7, 2064 (2021)
Fig. 1. Schematic diagram of detection methods of diffuse transmittance (a), total transmittance (b) and diffuse reflection (c)
Fig. 2. Schematic diagram of the spectrum detection system
Fig. 3. The original spectra of Apple's diffuse transmittance (a ), total transmittance (b ) and diffuse reflection (c )
Fig. 4. Wavelength screening using CARS method for pre-processed diffuse reflectance spectrum
Fig. 5. Scatter plot of measured versus predited SSC by the PLS calibration models combining CARS method
Fig. 6. Scatter plot of external verification results
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Table 1. The range, standard deviation and average value of SSC in the calibration and prediction sets
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Table 2. The original spectrum and the spectrum using different pretreatment methods combined with PLS are used to build a model to predict the results of apple SSC
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Table 3. Modeling results of full spectrum variables and CARS selection variables
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