Explosive Diode

Explosive Diode (One-Way Detonation and Transfer Device). A unitized device, called an "explosive diode , (US Patent Office... 

The new explosive diode incorporates high reliability, minimum weight, no moving parts, capable of functioning in extreme environments, flexibility in design applica-... 

Advances in instrumentation, such as diode arrays and ruggedized interferometers, have made IR and Raman instruments readily available for process work. NIR hardware has always been used more for production and quality control than laboratory and research work. They, too, have become smaller, faster, more rugged and, in 1980s dollars, less expensive. Explosion-proof enclosures allow close proximity to reactors containing solvents and can be operated in dusty locations (raw material handling situations). 

While Region II can be compared with the hot-wire initiation of primary explosives or pyrotechnic compositions, the laser power densities in region IV also make it possible to directly shock initiate secondary explosives by laser irradiation. The laser power densities of Region IV are achieved by solid-state lasers with laser powers of at least 100 W. In contrast, laser diodes ( 1-10 W) only provide power densities which fall into the regions II and III. However, more powerful laser diodes have been gradually developed and therefore, laser diode initiators (LDI) have be-... 

Concluding, based on these aspects, the laser initiation of explosives by laser diode radiation seems to be a very attractive and initiation method of the future. However, due to the limited power of laser diodes, the explosives might be thermally ignited and undergo a DDT, in contrast to the shock initiation which results by high-power solid-state laser radiation. The operating mode of laser diode initiators can be compared to that of electric hot-wires but with faster function times as has been demonstrated in the literature. 

Borch, T. and Gerlach, R. Use of reversed-phase high-performance liquid chromatography-diode array detection for complete separation of 2,4,6-trinitrotoluene metabolites and EPA Method 8330 explosives influence of temperature and an ion-pair reagent. J. Chromatogr. A. 2004,1022, 83-94. 

An on/off switch can be useful. It can be as simple as a weatherproofed toggle switch rated above the amperage of the panel or array. Such a switch in a solar hydrogen system should be placed close to the panel and not near the electrolyzer unless it is explosive rated switch. A simple connector box which contains the contacts and/or diodes can also house the switch. 

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