Xuquan Wang, Lili Wang, Jiaxiong Fang. Research and Application Progresses of Near-Infrared Spectral Sensing Internet of Things[J]. Chinese Journal of Lasers, 2021, 48(12): 1210001
- Chinese Journal of Lasers
- Vol. 48, Issue 12, 1210001 (2021)
Fig. 1. System architecture of NIR spectral sensing IoT
Fig. 2. Architecture of 256×1 spectral sensor integrated 64 channels filter
Fig. 3. Spectral sensor integrated LVF. (a) Architecture of the spectral sensor; (b) spectral channels of 256×1 spectral sensor; (c) spectral channels of 512×2 spectral sensor
Fig. 4. Assembly structure of LVF spectral sensor
Fig. 5. Corresponding relations between wavelength and spectral channels of three spectral sensors
Fig. 6. Normalized spectral response of three spectral sensors.(a) Spectral sensor integrated 64 channels filter; (b) 256×1 LVF spectral sensor;(c) 512×2 LVF spectral sensor
Fig. 7. Typical data path of spectral sensing IoT
Fig. 8. Practical application demonstration pictures of spectral sensing IoT. (a) Spectrum of low pressure mercury lamp tested by spectral sensing node; (b) test spectrum obtained by mobile phone client at a specific time
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