ZA202202745B - Safely testing or programming detonators in an electronic blasting system - Google Patents

Safely testing or programming detonators in an electronic blasting system

Info

Publication number
ZA202202745B
ZA202202745B ZA2022/02745A ZA202202745A ZA202202745B ZA 202202745 B ZA202202745 B ZA 202202745B ZA 2022/02745 A ZA2022/02745 A ZA 2022/02745A ZA 202202745 A ZA202202745 A ZA 202202745A ZA 202202745 B ZA202202745 B ZA 202202745B
Authority
ZA
South Africa
Prior art keywords
firing
detonator
logic circuit
testing
voltage
Prior art date
Application number
ZA2022/02745A
Inventor
Andries Willem Posthumus
Anthony John Rorke
Original Assignee
Omnia Group Pty Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omnia Group Pty Limited filed Critical Omnia Group Pty Limited
Publication of ZA202202745B publication Critical patent/ZA202202745B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/121—Initiators with incorporated integrated circuit
    • F42B3/122—Programmable electronic delay initiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

A detonator for use in an electronic blasting system comprises an electronic module with a logic circuit and a separate firing circuit. The logic circuit includes a processor and a logic capacitor and is responsive to logging and testing at a range of voltages ranging from a lower, non firing voltage to a higher, firing voltage. The logic circuit is configured to select a mode of operation based on the voltage applied to the detonator. The firing circuit includes a firing capacitor configured to fire a fuse head of the detonator. The supply of energy to the firing circuit is controlled by the logic circuit. In use, prior to testing the detonator at the firing voltage, the detonator is first tested the non-firing voltage to establish safe functioning of the logic circuit.
ZA2022/02745A 2019-08-16 2022-03-07 Safely testing or programming detonators in an electronic blasting system ZA202202745B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201905420 2019-08-16
PCT/IB2020/057485 WO2021033068A1 (en) 2019-08-16 2020-08-07 Safely testing or programming detonators in an electronic blasting system

Publications (1)

Publication Number Publication Date
ZA202202745B true ZA202202745B (en) 2023-10-25

Family

ID=72428301

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2022/02745A ZA202202745B (en) 2019-08-16 2022-03-07 Safely testing or programming detonators in an electronic blasting system

Country Status (4)

Country Link
AU (1) AU2020332088A1 (en)
CA (1) CA3151315A1 (en)
WO (1) WO2021033068A1 (en)
ZA (1) ZA202202745B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003614A1 (en) * 1994-07-28 1996-02-08 Asahi Kasei Kogyo Kabushiki Kaisha Electronic delay igniter and electric detonator
US6789483B1 (en) * 2003-07-15 2004-09-14 Special Devices, Inc. Detonator utilizing selection of logger mode or blaster mode based on sensed voltages

Also Published As

Publication number Publication date
WO2021033068A1 (en) 2021-02-25
AU2020332088A1 (en) 2022-03-10
CA3151315A1 (en) 2021-02-25

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