Hazards of electromagnetic radiation to ordnance (HERO) assessment of electro-explosive devices and validation of extrapolation method for estimation of the safety margin at HERO electromagnetic environments

Kichouliya, Rakesh; Devender, D.; Ramasarma, V.V.; Reddy, D. S.; Borkar, V.G.

doi:10.1109/isemc.2011.6038445

Cited by 6 publications

(3 citation statements)

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“…from the perspective of system function damage, especially for EIDs, the use of safety margin terminology has its merits. This is also evident from the early research mainly focused on aircraft, spacecraft, and missiles fields [ 11 , 12 ] . The electromagnetic effects include not only the damage effect, but also the effects of interference and disturbance [ 13–15 ] .…”

Section: The Concept and Requirements Of Marginmentioning

confidence: 99%

Evaluation Model and Method of Margin in Electromagnetic Environmental Effects for Complex Systems

Tang

Mao

2021

Chinese J of Electronics

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Margin is an important index in the control of Electromagnetic environmental effects (E3) and Electromagnetic compatibility (EMC) design for systems. How to define and verify the E3 margins of complex systems such as ships and airplanes is a difficult problem. A new method of system‐level E3 margin evaluation is proposed. Based on the theory of fault tree, the evaluation model of system‐level margin is constructed. The complex system function is transformed into the equipment and subsystem that affect the function, and the relationship between margin of system‐level and equipment is established. The change from margin of equipment to system‐level margin is realized. According to the action process of Electromagnetic environment (EME), the verification and evaluation methods of EME domain, response domain and effect domain are put forward. The margin calculation formula of EME domain and typical electromagnetic energy coupling response are deduced. The problem of margin evaluation for equipment under different input parameters is solved. A typical application example is given. The verification test scheme is designed. The methods of electromagnetic energy radiation and injection are adopted. The system‐level margin is analyzed by the data obtained from the effective test verification. The results show that the model and method are reasonable and feasible.

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Section: The Concept and Requirements Of Marginmentioning

confidence: 99%

Evaluation Model and Method of Margin in Electromagnetic Environmental Effects for Complex Systems

Tang

Mao

2021

Chinese J of Electronics

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“…Both Lee et al [14] and Xin et al [15] established a bridge wire temperature rise measurement system based on an infrared fiber optic temperature measurement device to measure the temperature rise of the exposed bridge (bridge wire with amorce removed) under constant current injection and suggested that the same method be used to make equivalent measurements of the induced current of the exposed bridge under radiation condition, however, the linearity of the fit of the bridge wire temperature rise to the injection current amplitude in the paper is not good, especially when the amplitude is small, which shows that the infrared fiber optic temperature measurement device has a large measurement error when measurement the temperature of a small object. Kichouliya et al [16] instead used a white light interferometric fiber optic temperature measurement device, similarly the induced current of a hot bridge wire EED under continuous wave radiation condition was equivalently measured, however, this study was conducted on an exposed bridge, which has a different thermal state than the bridge wire with amorce, and the direct use of the exposed bridge temperature measurement result for safety assessment would introduce error. Lu et al [17] proposed a method for exposed bridge temperature measurement of hot bridge wire EED using GaAs fiber optic temperature measurement device to deal with the problem of large error in infrared fiber optic temperature measurement device, however, it also does not address the issue of the difference in temperature of the bridge wire between the exposed and the amorce-filled states.…”

Section: Introductionmentioning

confidence: 99%

Measurement, calibration, and verification on the critical ignition temperature of hot bridge wire electro-explosive device

Lyu,

Wei,

et al. 2023

Meas. Sci. Technol.

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To address the problem of the difference in temperature between the exposed and amorce-filled state of the bridge wire in the fiber optic thermometry, this paper proceeds from a mathematical model of the temperature rise of the hot bridge wire electro-explosive device (EED), the relationship between the critical ignition temperature and the current of hot bridge wire EED is discussed. Combining thermal ignition theory, the technique of measurement and calibration the critical ignition temperature of hot bridge wire EED is proposed, and the technique is validated by injection versus radiation. The results show that the critical ignition temperature of the tested hot bridge wire EED obtained by testing and calibration is 337.53°C. The 50% ignition field strength of the hot bridge wire EED under radiation conditions obtained by the up-and-down method test is 1271 V/m, while the equivalent ignition field strength determined from the critical ignition temperature under the same radiation conditions is 1345 V/m, the error between the two is only 0.49 dB, which demonstrates the high accuracy of the proposed measurement and calibration technique.

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“…Conventional electronic detectors meet a key requirement of energetic event detection technology by providing precise timing control on the sub-millisecond time scale and simple multiplexing through the programming of delay times of individual events [ 27 ]. However, these detectors are expensive, involve components that operate at high voltages and are prone to failure through inadvertent short-circuits or false triggering from electromagnetic interference [ 28 , 29 ]. Some of these issues have been addressed with modern developments such as wireless initiation signals and RFID safety mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Controlling Nanostructure in Inkjet Printed Organic Transistors for Pressure Sensing Applications

et al. 2021

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This work reports the development of a highly sensitive pressure detector prepared by inkjet printing of electroactive organic semiconducting materials. The pressure sensing is achieved by incorporating a quantum tunnelling composite material composed of graphite nanoparticles in a rubber matrix into the multilayer nanostructure of a printed organic thin film transistor. This printed device was able to convert shock wave inputs rapidly and reproducibly into an inherently amplified electronic output signal. Variation of the organic ink material, solvents, and printing speeds were shown to modulate the multilayer nanostructure of the organic semiconducting and dielectric layers, enabling tuneable optimisation of the transistor response. The optimised printed device exhibits rapid switching from a non-conductive to a conductive state upon application of low pressures whilst operating at very low source-drain voltages (0–5 V), a feature that is often required in applications sensitive to stray electromagnetic signals but is not provided by conventional inorganic transistors and switches. The printed sensor also operates without the need for any gate voltage bias, further reducing the electronics required for operation. The printable low-voltage sensing and signalling system offers a route to simple low-cost assemblies for secure detection of stimuli in highly energetic systems including combustible or chemically sensitive materials.

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Hazards of electromagnetic radiation to ordnance (HERO) assessment of electro-explosive devices and validation of extrapolation method for estimation of the safety margin at HERO electromagnetic environments

Cited by 6 publications

References 0 publications

Evaluation Model and Method of Margin in Electromagnetic Environmental Effects for Complex Systems

Evaluation Model and Method of Margin in Electromagnetic Environmental Effects for Complex Systems

Measurement, calibration, and verification on the critical ignition temperature of hot bridge wire electro-explosive device

Controlling Nanostructure in Inkjet Printed Organic Transistors for Pressure Sensing Applications

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