WO2011014891A3 - Detonator firing circuit - Google Patents

Detonator firing circuit Download PDF

Info

Publication number
WO2011014891A3
WO2011014891A3 PCT/ZA2010/000038 ZA2010000038W WO2011014891A3 WO 2011014891 A3 WO2011014891 A3 WO 2011014891A3 ZA 2010000038 W ZA2010000038 W ZA 2010000038W WO 2011014891 A3 WO2011014891 A3 WO 2011014891A3
Authority
WO
WIPO (PCT)
Prior art keywords
switch
current
arrangement
regulating structure
firing circuit
Prior art date
Application number
PCT/ZA2010/000038
Other languages
French (fr)
Other versions
WO2011014891A2 (en
Inventor
Andre Koekemoer
Albertus Abraham Labuschagne
Original Assignee
Detnet South Africa (Pty) Ltd
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 Detnet South Africa (Pty) Ltd filed Critical Detnet South Africa (Pty) Ltd
Publication of WO2011014891A2 publication Critical patent/WO2011014891A2/en
Publication of WO2011014891A3 publication Critical patent/WO2011014891A3/en
Priority to ZA2011/02955A priority Critical patent/ZA201102955B/en

Links

Classifications

    • 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
    • F42D1/042—Logic explosive circuits, e.g. with explosive diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

A circuit (10) for firing an initiating element (24) of a detonator, the circuit including an integrated circuit controller (12), an energy storage device (18), a first switch (28), and current regulating structure (26), wherein the current regulating structure and the first switch are connected in series with the initiating element, the current regulating structure includes a switching arrangement (32), the current limiting structure (36) which is connected in parallel to the arrangement, and the controller is operable, with the voltage of the energy storage device below a defined level, to close the first switch to allow a test current to pass through the structure and the element and, with the voltage of the device at an operative level, which is greater than the defined level, to close the first switch to cause closure of the arrangement, to allow a firing current, produced by the device, to pass through the arrangement and the element.
PCT/ZA2010/000038 2009-07-30 2010-07-28 Detonator firing circuit WO2011014891A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2011/02955A ZA201102955B (en) 2009-07-30 2011-04-20 Detonator firing circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200905307 2009-07-30
ZA2009/05307 2009-07-30

Publications (2)

Publication Number Publication Date
WO2011014891A2 WO2011014891A2 (en) 2011-02-03
WO2011014891A3 true WO2011014891A3 (en) 2011-03-31

Family

ID=43430979

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/ZA2010/000039 WO2011014892A2 (en) 2009-07-30 2010-07-28 Detonator firing circuit
PCT/ZA2010/000038 WO2011014891A2 (en) 2009-07-30 2010-07-28 Detonator firing circuit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/ZA2010/000039 WO2011014892A2 (en) 2009-07-30 2010-07-28 Detonator firing circuit

Country Status (3)

Country Link
AR (2) AR077784A1 (en)
WO (2) WO2011014892A2 (en)
ZA (2) ZA201102955B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3033402B1 (en) 2015-03-04 2017-04-07 Davey Bickford SYSTEM FOR CONTROLLING AT LEAST ONE ELECTRONIC DETONATOR
US10359264B2 (en) 2016-08-11 2019-07-23 Austin Star Detonator Company Electronic detonator, electronic ignition module (EIM) and firing circuit for enhanced blasting safety
CN108709466B (en) * 2018-05-23 2019-12-10 中国电子科技集团公司第五十四研究所 Electronic detonator signal receiving circuit
KR101931266B1 (en) * 2018-06-21 2018-12-20 윤순덕 Apparatus for integral type blasting machine with circuit tester
CN114945796A (en) * 2019-11-21 2022-08-26 狩猎巨人公司 Addressable switch with detonator detection and detonator resistance measurement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396465A1 (en) * 1989-05-02 1990-11-07 Schlumberger Limited Ignition system for shaped charge perforating gun
DE19850868C1 (en) * 1998-11-04 2000-04-20 Siemens Ag Detonator capsule detonation circuit
WO2001071272A2 (en) * 2000-03-17 2001-09-27 Ensign-Bickford Aerospace & Defense Company Ordnance firing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842917C1 (en) * 1988-12-21 1989-11-30 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De Fuze device for detonating a pyrotechnic charge
GB2296757A (en) * 1994-07-28 1996-07-10 Asahi Chemical Ind Electronic delay igniter and electric detonator
AR050428A1 (en) * 2004-07-21 2006-10-25 Detnet Internat Ltd AN ELECTRONIC DETONATOR AND METHOD TO ADJUST THE NON-SHOOT VOLTAGE OF SUCH DETONATOR

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396465A1 (en) * 1989-05-02 1990-11-07 Schlumberger Limited Ignition system for shaped charge perforating gun
DE19850868C1 (en) * 1998-11-04 2000-04-20 Siemens Ag Detonator capsule detonation circuit
WO2001071272A2 (en) * 2000-03-17 2001-09-27 Ensign-Bickford Aerospace & Defense Company Ordnance firing system

Also Published As

Publication number Publication date
WO2011014892A2 (en) 2011-02-03
AR077784A1 (en) 2011-09-21
ZA201102956B (en) 2012-06-26
WO2011014892A3 (en) 2011-03-31
ZA201102955B (en) 2012-06-27
WO2011014891A2 (en) 2011-02-03
AR077785A1 (en) 2011-09-21

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