A review of the benefits of electronic detonators

Cardu, Marilena; Giraudi, Alessandro

doi:10.1590/s0370-44672013000300016

Cited by 12 publications

(12 citation statements)

References 2 publications

(2 reference statements)

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“…Currently, the majority of explosive detonator technologies offer initiation through either electronic or pyrotechnic elements. 1 Electronic detonators offer precise control of explosion timing and the ability to deliver initiation signals to a series of individual explosives. 2 However, electronic detonators are relatively expensive, require complex wire connections, are prone to triggering from false stimuli such as radio-frequency pick-up and often require substantial power pulses for initiation.…”

mentioning

confidence: 99%

Printable sensors for explosive detonation

Griffith

Cooling

Elkington

et al. 2014

Applied Physics Letters

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Here, we report the development of an organic thin film transistor (OTFT) based on printable solution processed polymers and employing a quantum tunnelling composite material as a sensor to convert the pressure wave output from detonation transmission tubing (shock tube) into an inherently amplified electronic signal for explosives initiation. The organic electronic detector allows detection of the signal in a low voltage operating range, an essential feature for sites employing live ordinances that is not provided by conventional electronic devices. We show that a 30-fold change in detector response is possible using the presented detector assembly. Degradation of the OTFT response with both time and repeated voltage scans was characterised, and device lifetime is shown to be consistent with the requirements for on-site printing and usage. The integration of a low cost organic electronic detector with inexpensive shock tube transmission fuse presents attractive avenues for the development of cheap and simple assemblies for precisely timed initiation of explosive chains.

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mentioning

confidence: 99%

Printable sensors for explosive detonation

Griffith

Cooling

Elkington

et al. 2014

Applied Physics Letters

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“…Terdapat dua metode peledakan yang digunakan yaitu metode nonel dan elektronik detonator, sehingga perlu dipilih metode peledakan yang tepat agar mengurangi dampak lingkungan dan agar menghasilkan fragmentasi peledakan yang bagus. Menurut Cardu, M. et al [1], metode electronic detonator memiliki keakuratan dalam pengaturan waktu tunda sehingga bahan peledak yang digunakan lebih efisien, fragmentasi lebih seragam, meningkatkan produktivitas alat mekanis, dan getaran peledakan yang terkontrol. Sedangkan metode nonel (menggunakan detonator non elektrik) merupakan metode yang sudah umum digunakan untuk membongkar overburden dibandingkan detonator listrik.…”

Section: Pendahuluanunclassified

Observasi Hasil Peledakan Menggunakan Metode Peledakan Nonel Dan Electronic Detonator

2020

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Metode peledakan sangat berguna untuk mempermudah dan mempercepat proses kerja alat muat dan alat angkut dalam kegiatan pengupasan lapisan tanah penutup (overburden). Peledakan dengan metode electronic detonator memiliki keakuratan dalam pengaturan waktu tunda sehingga bahan peledak yang digunakan lebih efisien, fragmentasi lebih seragam, dan getaran peledakan yang terkontrol. Sedangkan metode nonel merupakan metode yang sudah umum digunakan pada kegiatan pembongkaran overburden dikarenakan lebih efisien dibanding menggunakan metode listrik. Untuk mengetahui hasil peledakan menggunakan kedua metode tersebut, maka dilakukan pengamatan pada salah satu perusahaan pertambangan di Indonesia.Pengamatan dilakukan secara langsung di lapangan terhadap hasil peledakan menggunakan nonel dan electronic detonator. Hasil peledakan yang diamati meliputi powder factor, getaran dan digging time alat gali muat. Hasil pengamatan menunjukkan bahwa dengan burden 8 m dengan spasi 9 m untuk peledakan nonel di dapatkan powder factor 0,16 kg/bcm, rata rata digging time 12,36 detik, dampak getaran 1,56 mm/s. Dan untuk peledakan elektronik didapatkan powder factor 0,09 kg/bcm, rata rata digging time 9,73 detik, serta dampak getaran 1,17 mm/s. Oleh sebab itu disimpulkan bahwa menggunakan metode elektronik mengurangi digging time dan dampak getaran yang lebih terkontrol.

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“…In these detonators, there is a computer chip to control delay time using electrical energy that is stored in one or more capacitors for initiation energy or timing clock. In this case, delay time is achieved electronically [18].…”

Section: Explosives As An Energy Sourcementioning

confidence: 99%

Determining the Amount of Explosives in Metal Forming

Šunjić¹,

Buljan²

2019

DAAAM Proceedings

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Explosive forming is an unconventional metal forming technology first discovered in the late 19 th century and had large development in the mid-20 th century. Explosives can be used as an energy source with technologies such as deep drawing, welding, expansion, blanking, and piercing, etc. In order to perform the forming process correctly, it is necessary to precisely determine the proper amount of explosives. The paper presents a review of the analytical methods used to calculate the amount of explosives required for forming a hemisphere. Three cases were taken for research with different thicknesses (3,4 and 5 mm) and with a radius of 95 mm. A comparison of the results obtained by these methods was also done.

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A review of the benefits of electronic detonators

Cited by 12 publications

References 2 publications

Printable sensors for explosive detonation

Printable sensors for explosive detonation

Observasi Hasil Peledakan Menggunakan Metode Peledakan Nonel Dan Electronic Detonator

Determining the Amount of Explosives in Metal Forming

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