Tundish Cover Flux Thickness Measurement Method and Instrumentation Based on Computer Vision in Continuous Casting Tundish

Table 4

Measurement results and comparison between our method and the traditional single/double wire measurement methods. All these data were obtained from Sanming Steel Plant.

TCF thickness measured by our method (mm)	TCF thickness measured by single-wire measurement method from operator no. 1 (mm)	TCF thickness measured by double-wire measurement method from operator no. 2 (mm)	Deviation of our method from single-wire measurement method (mm)	Deviation of our method from double-wire measurement method (mm)
26.1	23.9	24.8	2.2	1.3
24.8	23.3	23.5	1.5	1.3
20.7	18.8	22.1	1.9	−1.4
30.5	26.1	27.6	4.4	2.9
29.1	24.6	27.6	4.5	1.5
24.9	22.8	26.1	2.1	−1.2
22.8	21.8	24.1	1	−1.3
29.8	25.1	28.3	4.7	1.5
28.6	22.9	27.3	5.7	1.3
25.7	22.5	26.1	3.2	−0.4
20.5	23.6	25.3	−3.1	−4.8
32.9	28.8	30.8	4.1	2.1
29.8	25.3	26.2	4.5	3.6
24.3	21.8	27.5	2.5	−3.2
20.9	18.5	26.5	2.4	−5.6
20.8	23.9	25.8	−3.1	−5
35.1	31.8	28.8	3.3	6.3
31.6	33.4	26.9	−1.8	4.7
29.1	28.4	26.6	0.7	2.5
21.0	24.4	25.8	−3.4	−4.8
Biggest deviation			5.7	6.3
Mean deviation			3.0	2.8