Table 8.

Number of sensors at re-entrant corners of Configuration 4.

Case 1 (α)	No of sensors						Case 2 (α)	No of sensors						Case 3 (α)	No of sensors
	L		A		H			L		A		H			L		A		H
	E	S	E	S	E	S		E	S	E	S	E	S		E	S	E	S	E	S
0°	4	4	8	8	0	0	0°	3	7	9	5	0	0	0°	1	3	7	9	4	0
22.5°	5	5	5	7	2	0	22.5°	3	4	8	8	1	0	22.5°	2	2	10	10	0	0
45°	2	2	8	9	2	1	45°	2	3	8	9	2	0	45°	0	2	10	10	2	0
67.5°	3	4	7	8	2	0	67.5°	2	3	8	9	2	0	67.5°	0	0	8	12	4	0
90°	6	6	4	6	2	0	90°	5	4	6	8	1	0	90°	1	1	9	11	2	0