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Registered Member #608
Joined: Wed Mar 28 2007, 12:01AM
Location: Canada
Posts: 17
I am planning to make my first EMP. My plan is to take one mile of insulated pure copper wire and wrap it around a none conductive container. I will then place a pure iron core in the container (haven't decided what to use as a container yet). I will then get capacitors (I'm still researching the voltage and number of micro-farads in the capacitor, so if anyone knows what a good number of Vs and ufs please tell me). I will then find a timer circuit with a high current/voltage thyrisistor switch. I will then connect the thyrisistor to the capacitor to the Coil. I will then charge the capacitors and set it off. Keep in mind, i only want an EMP with a blast radius of about one to two feet, and only strong enough to disable things, like a lightbulb. Any input into this plan, would be much appreciated. I am still researching, so please forgive any dumb questions i might ask.
Registered Member #16
Joined: Thu Feb 02 2006, 02:22PM
Location: New Wilmington, PA
Posts: 554
This thread violates several forum rules, and has thus been locked. The nature of the thread demonstrates zero understanding of the subject matter, and a lack of research.
A few key points. EMP would be ineffective against a lightbulb, atleast any reasonably small device. The pulse required to destroy a tungsten filament would be phenominal. Generally EMP is intended for disabling of transistor based electronics.
Also, 'EMP' Is really just an extremely rapidly changing magnetic field. The faster it rises and falls, the more current it can induce on a circuit, and the more damage it can do. A mile of wire would have a huge impedance, requiring a huge potential and very small capacitance to achieve any reasonably fast rise time. The voltage required would almost certainly be well in excess of the insulation rating of the wire itself.
Adding an iron core would only exaggerate this problem, though only a limited amount, since the core would certainly saturate far below the maximum flux density of the coil, giving you little more than an expensive induction heater.
Please research topics more carefully in the future and start threads when you have the basics figured out, and are need of more specific advice. Forum rules prohibit threads that ask questions easily answered by simple research.
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EMP
