Shun-kuan WAN, Bo LÜ, Hong-ming ZHANG, Liang HE, Jia FU, Hua-jian JI, Fu-di WANG, Bin BIN, Yi-chao LI. Quick Measurement Method of Condensation Point of Diesel Based on Temperature-Compensation Model[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3111
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 3111 (2021)
Fig. 1. Absorbance spectra of (a) original and (b) pre-treated diesel samples at 25 ℃ temperature environment
Fig. 2. (a) Relationship between residuals errors of calibration set (RMSEC) and prediction set (RMSEP) and factor numbers; (b) Prediction results of condensation point under the environment temperature of 25 ℃
Fig. 3. Comparison of valuesof prediction deviation of condensation pointbased on (a) temperatures-free compensation model and (b) temperatures-compensation model
Fig. 4. Comparison of values of condensation point of diesel based on (a) temperatures-free compensation model and (b) temperatures-compensation model at ambient temperature of 10 ℃
Fig. 5. Comparison of -54 ℃ samples at different temperatures before and after temperature correction
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Table 1. The correlation coefficients r and residual error of prediction set (RMSEP) before and after temperature modification
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