FI20030143A0 - DDT-type laser lighter - Google Patents

DDT-type laser lighter

Info

Publication number
FI20030143A0
FI20030143A0 FI20030143A FI20030143A FI20030143A0 FI 20030143 A0 FI20030143 A0 FI 20030143A0 FI 20030143 A FI20030143 A FI 20030143A FI 20030143 A FI20030143 A FI 20030143A FI 20030143 A0 FI20030143 A0 FI 20030143A0
Authority
FI
Finland
Prior art keywords
detonating
pulse
laser
ddt
frame structure
Prior art date
Application number
FI20030143A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI112702B (en
Inventor
Matti Harkoma
Maija Hihkioe
Tellervo Vormisto
Original Assignee
Puolustusvoimien Teknillinen T
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 Puolustusvoimien Teknillinen T filed Critical Puolustusvoimien Teknillinen T
Priority to FI20030143A priority Critical patent/FI112702B/en
Publication of FI20030143A0 publication Critical patent/FI20030143A0/en
Application granted granted Critical
Publication of FI112702B publication Critical patent/FI112702B/en
Priority to NO20040272A priority patent/NO20040272L/en
Priority to SE0400133A priority patent/SE0400133D0/en
Priority to AT04397005T priority patent/ATE412161T1/en
Priority to EP04397005A priority patent/EP1443297B1/en
Priority to DE602004017238T priority patent/DE602004017238D1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/10Initiators therefor
    • F42B3/113Initiators therefor activated by optical means, e.g. laser, flashlight

Abstract

Laser detonator (3) of DDT-type (Deflagration to Detonation Transition) that comprises at least a frame structure (4, 5) and a detonating material (7) placed inside the frame structure, as well as an optical input arranged in the frame structure to guide a detonating pulse, i.e. laser pulse to the detonating material (7). The detonating material (7) of the laser detonator (3) is in an overpressurized state when compared to the normal air pressure to reduce the energy of the detonating pulse required for igniting the detonating material. Furthermore, the invention relates to a detonating system comprising at least the above-described laser detonator (3) as well as a control unit (1) for producing a laser pulse, i.e. the detonating pulse and an optical fiber (2) connecting the laser detonator and the control unit. <IMAGE>
FI20030143A 2003-01-31 2003-01-31 DDT-type laser lighter FI112702B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI20030143A FI112702B (en) 2003-01-31 2003-01-31 DDT-type laser lighter
NO20040272A NO20040272L (en) 2003-01-31 2004-01-21 Laser detonator type DDT
SE0400133A SE0400133D0 (en) 2003-01-31 2004-01-23 Laser detonator or DDT type
AT04397005T ATE412161T1 (en) 2003-01-31 2004-01-29 LASER INITIATED IGNITION
EP04397005A EP1443297B1 (en) 2003-01-31 2004-01-29 Laser detonator
DE602004017238T DE602004017238D1 (en) 2003-01-31 2004-01-29 Laser-initiated detonator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20030143A FI112702B (en) 2003-01-31 2003-01-31 DDT-type laser lighter
FI20030143 2003-01-31

Publications (2)

Publication Number Publication Date
FI20030143A0 true FI20030143A0 (en) 2003-01-31
FI112702B FI112702B (en) 2003-12-31

Family

ID=8565487

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20030143A FI112702B (en) 2003-01-31 2003-01-31 DDT-type laser lighter

Country Status (6)

Country Link
EP (1) EP1443297B1 (en)
AT (1) ATE412161T1 (en)
DE (1) DE602004017238D1 (en)
FI (1) FI112702B (en)
NO (1) NO20040272L (en)
SE (1) SE0400133D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20060926A1 (en) 2004-11-02 2006-09-04 Orica Explosives Tech Pty Ltd ASSEMBLIES OF WIRELESS DETONATORS, CORRESPONDING BLASTING APPLIANCES AND BLASTING METHODS
MX2009009804A (en) 2007-03-16 2009-11-09 Orica Explosives Tech Pty Ltd Initiation of explosives materials.
CN102435109A (en) * 2011-10-21 2012-05-02 中国科学技术大学 Laser initiation flyer type initiating explosive-free detonator
CN102679887A (en) * 2012-05-28 2012-09-19 广东宏大爆破股份有限公司 Automatic basic detonator grain height detection and waste rejection device and method
RU2493603C1 (en) * 2012-06-19 2013-09-20 Открытое акционерное общество "Информационные спутниковые системы" имени академика М.Ф. Решетнева" Device for control and demolition of ignition cylinders
CN103673795A (en) * 2014-01-03 2014-03-26 安徽理工大学 Primary explosive-free laser detonator
US11131530B2 (en) 2018-01-29 2021-09-28 Lawrence Livermore National Security, Llc Opto-thermal laser detonator
PE20201435A1 (en) 2018-03-08 2020-12-09 Orica Int Pte Ltd SYSTEMS, APPARATUS, DEVICES AND METHODS TO INITIATE OR DETONATE TERTIARY EXPLOSIVE MEDIA USING PHOTONIC ENERGY
CN111707152B (en) * 2020-06-29 2022-07-01 南京邮电大学 Multipoint blasting system based on optical fiber energy supply and working method
CN112229557B (en) * 2020-09-14 2022-04-05 中国石油天然气股份有限公司 Detonator axial output pressure testing assembly with connecting pipe
CN112945032A (en) * 2021-03-31 2021-06-11 电子科技大学 Microwave ignitor for artillery

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812783A (en) * 1972-08-03 1974-05-28 Nasa Optically detonated explosive device
US4898095A (en) * 1986-10-20 1990-02-06 Nippon Oil And Fats Company, Limited And Kajima Corporation Laser beam-detonatable blasting cap
US5099761A (en) * 1991-01-28 1992-03-31 The United States Of America As Represented By The Secretary Of The Army Laser actuated thru-bulkhead initiator
US6276276B1 (en) * 1999-08-19 2001-08-21 The United States Of America As Represented By The United States Department Of Energy Thin-film optical initiator

Also Published As

Publication number Publication date
EP1443297B1 (en) 2008-10-22
FI112702B (en) 2003-12-31
NO20040272L (en) 2004-08-02
EP1443297A1 (en) 2004-08-04
SE0400133D0 (en) 2004-01-23
DE602004017238D1 (en) 2008-12-04
ATE412161T1 (en) 2008-11-15

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Legal Events

Date Code Title Description
MM Patent lapsed