Infrared and Laser Engineering, Volume. 53, Issue 10, 20240269(2024)
Infrared array imaging for precise temperature measurement and temperature compensation
Figures & Tables(12)
Fig. 5. Relationship between temperature error and measurement distance
Table 1. System temperature measurement data at different distances
View tableView in ArticleTable 1. System temperature measurement data at different distances
Distance/m Blackbody temperature/℃ 30 40 50 60 70 80 90 100 0.2 29.97 39.92 49.52 59.34 69.26 79.23 88.79 97.86 0.3 29.33 39.05 48.73 58.53 68.30 78.39 86.18 95.49 0.4 28.78 38.02 47.36 57.12 65.81 75.40 84.32 92.79 0.5 28.32 36.79 46.04 55.63 64.79 73.51 82.96 90.37 0.6 28.14 35.82 45.85 54.34 63.84 72.01 81.36 87.98 0.7 27.89 35.13 44.73 52.94 61.91 70.59 80.55 86.81 0.8 27.51 34.75 43.96 50.83 59.83 68.60 77.37 84.03 0.9 27.34 34.21 43.15 50.72 58.60 66.85 76.32 81.87 1.0 27.05 34.01 42.56 49.96 57.93 66.23 75.59 80.45 1.1 26.81 33.83 41.93 48.24 56.58 64.19 73.72 78.53 1.2 26.38 33.46 40.86 47.22 55.32 62.58 71.35 76.82
Table 2. Coefficient of determination for error fittings at different temperatures
View tableView in ArticleTable 2. Coefficient of determination for error fittings at different temperatures
R2 30 ℃ 40 ℃ 50 ℃ 60 ℃ 70 ℃ 80 ℃ 90 ℃ 100 ℃ Exp 0.7658 0.6320 0.8542 0.8487 0.8502 0.8445 0.9018 0.8888 Lin 0.9723 0.9287 0.9886 0.9895 0.9913 0.9923 0.9906 0.9944 Quad. poly 0.9876 0.9956 0.9939 0.9916 0.9938 0.9952 0.9911 0.9985
Table 3. Coefficients of the error fitting function at different temperatures
View tableView in ArticleTable 3. Coefficients of the error fitting function at different temperatures
Coefficient 30 ℃ 40 ℃ 50 ℃ 60 ℃ 70 ℃ 80 ℃ 90 ℃ 100 ℃ A1 − 1.4627 − 6.2378 − 2.2156 − 2.0874 − 2.5373 − 3.1993 − 1.3800 − 4.8310 A2 5.3032 15.2270 11.5170 15.3380 17.7890 21.2330 18.3410 27.7640 B − 0.8056 − 2.8871 − 1.7216 − 2.6749 − 2.9711 − 3.6644 1.8891 − 3.2211
Table 4. Corrected temperature data
View tableView in ArticleTable 4. Corrected temperature data
Distance/m Blackbody temperature/℃ 30 40 50 60 70 80 90 100 0.2 30.17 39.83 50.01 59.65 69.75 79.68 90.51 100.00 0.3 29.98 40.17 50.26 60.04 70.44 80.81 89.67 100.16 0.4 29.86 40.23 49.89 60.25 69.55 79.72 89.55 99.90 0.5 29.80 39.96 49.52 60.10 70.08 79.66 89.90 99.82 0.6 29.99 39.82 50.24 60.12 70.63 80.93 89.98 99.67 0.7 30.08 39.84 49.98 59.98 70.15 80.22 90.82 100.64 0.8 30.01 40.05 50.03 59.09 69.50 79.87 89.27 99.90 0.9 30.12 39.97 49.99 60.16 70.59 79.70 89.82 99.70 1.0 30.08 40.11 50.13 60.54 70.21 80.60 90.66 100.16 1.1 30.07 40.15 50.19 59.91 70.11 79.01 90.34 100.07 1.2 29.83 39.86 49.76 59.94 70.04 79.79 89.48 100.15
Table 5. Blackbody calibration experimental data
View tableView in ArticleTable 5. Blackbody calibration experimental data
Setting temperature/℃ Temperature 1/℃ Temperature 2/℃ Temperature 3/℃ Temperature 4/℃ Temperature 5/℃ Mean temperature/℃ Mean temperature difference/℃ Standard deviation/℃ 30 29.63 29.32 30.04 30.51 29.97 29.894 −0.106 0.318 40 40.32 39.89 40.04 40.63 39.09 39.994 −0.006 0.566 50 48.80 49.17 50.66 50.63 49.01 49.654 −0.346 0.798 60 59.44 60.09 60.96 60.66 61.45 60.520 0.520 0.695 70 68.98 70.12 70.70 70.53 70.15 70.096 0.096 0.586 80 80.67 79.99 78.08 79.56 79.11 79.482 −0.518 0.918 90 90.63 91.25 88.51 89.43 87.01 89.366 −0.634 1.595 100 101.80 100.53 98.06 99.18 98.87 99.688 −0.312 1.307
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Yunhong LI, Bin CAO, Xueping SU, Jinni CHEN, Limin LI, Gang ZHANG, Yaolin ZHU. Infrared array imaging for precise temperature measurement and temperature compensation[J]. Infrared and Laser Engineering, 2024, 53(10): 20240269
Paper Information
Category: 红外技术及应用
Received: Jun. 26, 2024
Accepted: --
Published Online: Dec. 13, 2024
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