Spectroscopy and Spectral Analysis, Volume. 42, Issue 4, 1235(2022)
Design of Portable Flour Quality Safety Detector Based on Diffuse Transmission Near-Infrared Spectroscopy
Fig. 2. Schematic diagram of device hardware
(a): Instrument strumcture diagram; (b): Physical drawing of instrument 1: Shell; 2: Vent; 3: Micro spectrometer; 4: Grip; 5: Upper cover and touch screen; 6: Raspberry Pi 4B; 7: Lug boss; 8: Light source control circuit board; 9: Card slot; 10: Testing accessories; 11: Power Supply
Fig. 3. Test accessories
1: Objective table; 2: Copper stud; 3: Light source seat; 4: Light source cover; 5: Sample pool; 6: Reflective cover; 7: Optical fiber collimating mirror; 8: Adjusting rod; 9: Swallowtail guide slide block; 10: Dovetail guide rail; 11: Support
Fig. 5. Light source control module
1: Circuit board; 2: Raspberry Pi 4B; 3: Lithium battery;4: 1 kΩ pull-up resistor; 5: Halogen lamp bead;6: TIP120 Darlington transistor
Fig. 7. Box plot graphics depicting the outliers in original spectra
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Xiao-hong ZHANG, Xue-song JIANG, Fei SHEN, Hong-zhe JIANG, Hong-ping ZHOU, Xue-ming HE, Dian-cheng JIANG, Yi ZHANG. Design of Portable Flour Quality Safety Detector Based on Diffuse Transmission Near-Infrared Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(4): 1235
Category: Research Articles
Received: Mar. 27, 2021
Accepted: --
Published Online: Jul. 25, 2023
The Author Email: Xiao-hong ZHANG (295719410@qq.com)