Laser Technology, Volume. 49, Issue 4, 626(2025)
Online measurement method of stacked volume of filamentary material based on laser sensing technology
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Table 0. [in Chinese]
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tetrahedrons element semi-cylinder repetition times 30 30 average peak height of cross section/cm 26.19 19.25 standard deviation of peak height/cm 0.05 0.04 variable coefficient of peak height/% 0.19 0.21 average width of cross section/cm 51.88 40.55 standard deviation of width/cm 0.03 0.09 variable coefficient of width/% 0.06 0.22 average sectional area/cm2 688.78 599.37 standard deviation of sectional area/cm2 0.33 1.17 variable coefficient of sectional area/% 0.05 0.20 average volume/cm3 28202.40 25771.60 standard deviation of volume/cm3 491.15 463.25 variable coefficient of volume/% 1.74 1.80
Table 0. [in Chinese]
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Moving algorithm Savitzky-Golay algorithm LOWESS algorithm repetition times 30 30 30 mean value/cm3 6236.05 6415.64 6309.18 max–min/cm3 105.20 289.00 187.00 standard deviation/cm3 84.81 362.48 214.51 variable coefficient/% 1.36 5.65 3.40
Table 0. [in Chinese]
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point number 1 2 3 4 5 6 7 8 9 10 repetition times 30 30 30 30 30 30 30 30 30 30 average absolute error/cm 0.32 0.26 0.36 0.48 0.63 0.59 0.85 0.72 0.67 0.50 standard eviation/cm 0.46 0.35 0.40 0.52 0.55 0.76 0.75 0.59 0.63 0.28
Table 0. [in Chinese]
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lamella after smoothing triangle pile after smoothing thick layer after smoothing repetition times 30 30 30 30 30 30 mean value/cm3 3060.20 2998.60 5700.82 5625.12 23005.32 22010.35 max–min/cm3 198.05 65.00 320.89 125.50 440.23 160.45 standard deviation/cm3 159.13 25.49 276.49 114.75 970.82 237.71 variable coefficient/% 5.20 0.85 4.85 2.04 4.22 1.08
Table 0. [in Chinese]
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average length of tobacco/cm laser source height/cm min scan angle/(°) angular resolution/(°) m of Moving algorithm m of Savitzky-Golay algorithm 2.00 125.90 0.91 0.1667 6 3
Table 0. [in Chinese]
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tetrahedrons element semi-cylinder peak height of cross section/cm 25.99 19.16 absolute error of peak height/cm 0.01 0.14 relative error of peak height/% 0.04 0.73 width value of cross section/cm 52.78 41.00 absolute error of width/cm 0.78 1.00 relative error of width/% 1.48 2.44 area of cross section/cm2 687.60 596.50 absolute error of area/cm2 11.60 9.80 relative error of area/% 1.72 1.62 volume measurement of standard sample/cm3 28744.00 25366.00 absolute error of volume/cm3 555.00 99.00 relative error of volume/% 1.97 0.39
Table 0. [in Chinese]
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parameters value repetition times 30 average value/cm3 6272.34 max–min/cm3 380.25 standard deviation/cm3 282.26 variable coefficient/% 4.50
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Yuyao YANG, Jiakang LI, Yuhong LIN, Guodong DENG, Hui LI, Qi ZHANG, Duanfeng LU, Le WANG. Online measurement method of stacked volume of filamentary material based on laser sensing technology[J]. Laser Technology, 2025, 49(4): 626
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Received: Jul. 17, 2024
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Published Online: Aug. 28, 2025
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