Fengbo Zhou, Hongqiu Zhu, Changgeng Li. Optical System Error Correction Method for Online Detection of Miniature Spectrometer[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0307001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 3, 0307001 (2022)
Fig. 1. Flow chart of adaptive wavelet threshold algorithm
Fig. 2. Spectral detection hardware platform
Fig. 3. Copper spectral signal collected by ATP2000 spectrometer. (a) Background light intensity; (b) reference light intensity; (c) sample light intensity; (d) absorbance curve
Fig. 4. Spectral signal and calibration curve of copper and cobalt. (a) Spectral signal of copper; (b) spectral signal of cobalt; (c) linear correction curve of copper; (d) linear correction curve of cobalt
Fig. 5. Spectral signal and calibration curve of copper and cobalt after denoising. (a) Spectral signal of copper; (b) spectral signal of cobalt; (c) linear correction curve of copper; (d) linear correction curve of cobalt
Fig. 6. Ratio curve of dual wavelength intensity. (a) Ratio curve at the wavelengths of 445 nm and 525 nm; (b) ratio curve at the wavelengths of 456 nm and 492 nm
Fig. 7. Spectral signal calibration curve
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Table 1. Linear correlation parameters of copper and cobalt at different wavelengths
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