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

Table 5

Measurement results and comparison between our method and the traditional single/double wire measurement methods. All these data were obtained from the Nanjing 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)
33.5	35.8	33.6	−2.3	−0.1
31.0	31.9	30.7	−0.9	0.3
30.0	27.6	29.8	2.4	0.2
37.6	40.3	36.1	−2.7	1.5
35.7	39.5	33.1	−3.8	2.6
31.2	30.0	28.5	1.2	2.7
26.5	29.1	23.8	−2.6	2.7
40.0	40.9	37.6	−0.9	2.4
37.9	31.5	34.8	6.4	3.1
31.0	27.6	29.7	3.4	1.3
21.6	25.9	28.1	−4.3	−6.5
43.8	42.9	38.1	0.9	5.7
38.5	38.7	34.6	−0.2	3.9
28.9	31.6	30.8	−2.7	−1.9
25.3	24.3	28.5	1	−3.2
45.5	45.8	42.5	−0.3	3
40.6	42.6	33.0	−2	7.6
37.1	37.1	32.1	0	5
Biggest deviation			6.4	7.6
Mean deviation			2.1	3.0