Table 1.

Comparison of the deformation according to the sensors and the targets.

Step	ΔZ DIC 1 (mm)	Sensor 1 (mm)	Error 1 (mm)	Absolute error 1 (mm)	ΔZ DIC 2 (mm)	Sensor 2 (mm)	Error 2 (mm)	Absolute error 2 (mm)
10	− 0.003	− 0.001	− 0.002	0.002	− 0.006	0	− 0.006	0.006
11	0.000	− 0.001	0.001	0.001	− 0.004	− 0.001	− 0.003	0.003
12	− 0.001	0	− 0.001	0.001	− 0.004	0.003	− 0.007	0.007
13	0.001	− 0.004	0.005	0.005	− 0.001	− 0.006	0.005	0.005
14	− 0.027	− 0.036	0.009	0.009	− 0.005	− 0.008	0.003	0.003
15	− 0.049	− 0.043	− 0.006	0.006	− 0.011	− 0.015	0.004	0.004
16	− 0.075	− 0.041	− 0.034	0.034	− 0.020	− 0.019	− 0.001	0.001
17	− 0.08	− 0.041	− 0.039	0.039	− 0.026	− 0.021	− 0.005	0.005
18	− 0.082	− 0.038	− 0.044	0.044	− 0.025	− 0.021	− 0.004	0.004
19	− 0.082	− 0.039	− 0.043	0.043	− 0.027	− 0.021	− 0.006	0.006
20	− 0.064	− 0.037	− 0.027	0.027	− 0.031	− 0.022	− 0.009	0.009
Mean value			− 0.016	0.019			− 0.003	0.005
Standard deviation			0.021	0.018			0.005	0.002
Minimum value			− 0.044	0.001			− 0.009	0.001
Maximum value			0.009	0.044			0.005	0.009