Controlled electromagnetic induction detonation system for initiation of a detonatable material

A controlled electromagnetic induction detonation system for decoupled in hole initiation of an energetic substance, said system including:

• an automated radio charge (ARCH) module coupled to an energetic substance and deposited in a hole formed in a hard material, the ARCH module having no permanent onboard power source but including a power circuit for extracting by means of electromagnetic induction operational power from a remotely generated electromagnetic field, the power circuit providing operational power for-the-ARCH module and arranged to generate a detonation current deliverable to the energetic substance, and means for receiving and decoding radio transmitted control signals including a FIRE code, the verified receipt of which causes delivery of the detonation current to the energetic substance;
• a stemming bar for stemming the hole in which the energetic substance and ARCH module are deposited;
• and,
• a transducer unit for radio transmitting said control signals, said transducer unit having a coil for generating the electromagnetic field, the coil mounted on or in the stemming bar to effect the transfer of operational power to the ARCH module by electromagnetic induction.