Optimal Selection of the Reference Potential Probe Point in DCPD Real-Time Monitoring of Crack Growth Rate

Table 3

The value of the RPD after optimization of measurability.

Number n	Crack length an (mm)	The value of RPD Un (μV)	Probe point K1 (i, j)	Probe point K2 (i, j)
65621	12.5	226.709	30 (0, 14)	87 (21, 0)/63 (31, 14)
65721	13	226.95	30 (0, 14)	86 (22, 0)/151 (30, 14)
65791	13.5	227.209	30 (0, 14)	85 (23, 0)/232 (29, 13)
65879	14	227.48	30 (0, 14)	84 (24, 0)/62 (31, 15)
65915	14.5	227.762	30 (0, 14)	83 (25, 0)/150 (29, 14)
65959	15	228.052	30 (0, 14)	82 (26, 0)/230 (27, 13)
65989	15.5	228.353	30 (0, 14)	81 (27, 0)/61 (30, 15)
66037	16	228.661	30 (0, 14)	80 (28, 0)/149 (28, 14)