Identifying Delay Time of Detonator for a Millisecond Blasting

Table 3

Detonator deferment stages, deferral times, and actual differential intervals.

Detonator segment	Initial time	Modulus maximum	Notional delay time (ms)	Error ratio of notional delay time	Arranged time interval (ms)	Monitored time interval (ms)	Whether early explosion or refusal
MS1	0.00075	0.2411	<13	—	0∼13	0	No
MS3	0.04462	0.285	50 ± 10	0.2	0∼50	43.87	No
MS5	0.1276	0.2324	110 ± 15	0.1364	35∼85	82.98	No
MS7	0.2021	0.349	200 ± 20	0.1	55∼125	74.5	No
MS8	0.233	0.335	250 ± 25	0.1	5∼95	30.9	No
MS9	0.3347	0.3057	310 ± 30	0.0968	5∼115	101.7	No
MS10	0.4249	0.3836	380 ± 35	0.0921	5∼135	90.2	No
MS11	0.4984	0.4587	460 ± 40	0.0869	5∼155	73.5	No
MS13	0.7084	0.4793	650 ± 50	0.0769	100∼280	210	No
MS15	0.9645	0.4467	880 ± 60	0.0682	120∼340	256.1	No
MS19	1.771	0.3984	1700 ± 130	0.0765	630∼1010	806.5	No