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. 2014 Dec 12;14(12):24098–24115. doi: 10.3390/s141224098

Table 2.

Parameters of the test specimen.

Type Photography Size
Axial crack graphic file with name sensors-14-24098t1.jpg Length: 10 mm
Width: 0.5 mm
Depth: 15 %, 20 %, 40 % and 60 % of wall thickness
Circumferential crack graphic file with name sensors-14-24098t2.jpg Length: 10 mm
Width: 0.5 mm
Depth: 15 %, 20 %, 40 % and 60 % of wall thickness
Circular defect graphic file with name sensors-14-24098t3.jpg Diameter 3 mm
Depth: 15 %, 20 %, 40 % and 60 % of wall thickness