Table 1 Positional precision of our proposed system for aero-engine blades was evaluated through experiments on 8 randomly selected blades

Trial ID	Blade ID
Trial ID	1	2	3	4	5	6	7	8
(a) Position of the Blades in the X-axis
1	−160.55	−103.14	−40.38	−230.86	−165.16	−105.29	−45.49	17.67
2	−160.55	−103.44	−40.70	−230.71	−165.09	−105.29	−45.49	17.34
3	−160.57	−104.40	−40.06	−231.18	−164.69	−105.27	−45.69	17.34
4	−160.57	−103.44	−41.34	−231.65	−165.32	−105.29	−45.49	18.09
5	−160.57	−103.12	−41.02	−230.86	−165.09	−105.27	−45.37	17.34
6	−160.35	−104.72	−40.38	−231.18	−165.09	−104.32	−46.01	17.99
7	−160.35	−103.46	−40.70	−230.86	−165.00	−105.58	−45.49	17.34
8	−160.57	−104.40	−40.91	−231.51	−165.09	−105.29	−45.69	17.67
\(\sigma\) (mm)	0.10	0.64	0.41	0.34	0.18	0.37	0.20	0.31
							\(\sigma _{x}\) (mm)	0.35
(b) Position of the Blades in the Y−axis
1	−1164.23	−1163.60	−1160.40	−1117.55	−1112.37	−1110.99	−1111.21	−1112.08
2	−1163.91	−1163.29	−1159.45	−1117.72	−1112.51	−1110.68	−1111.21	−1111.43
3	−1163.91	−1163.29	−1160.09	−1117.87	−1112.65	−1110.54	−1111.08	−1112.08
4	−1163.91	−1163.92	−1158.17	−1118.03	−1112.33	−1110.99	−1111.21	−1112.21
5	−1164.22	−1163.60	−1160.72	−1118.19	−1112.19	−1110.54	−1111.08	−1111.75
6	−1164.22	−1163.60	−1157.85	−1117.55	−1112.51	−1109.92	−1111.08	−1111.75
7	−1164.23	−1163.60	−1157.85	−1117.87	−1112.01	−1110.54	−1110.90	−1111.75
8	−1164.22	−1163.60	−1157.53	−1117.87	−1112.51	−1110.99	−1110.76	−1111.75
\(\sigma\) (mm)	0.16	0.20	1.30	0.22	0.21	0.36	0.16	0.25
							\(\sigma _{y}\) (mm)	0.49

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