Exploding Wire Plasma Energy Device Electromagnetic Pulse (EMP) Generator: Continued

By Dorian Stonehouse

This project continues from:

https://electrosparkles.com/exploding_wire_emp_electromagnetic_pulse

To recap:

THE left and right capacitor banks are connected in series, producing around 7.5 kV, which is fed through two redundant 30 amp fuse switches to a slender wire.

When the switches (which are ganged) are depressed, the wire explodes.

A simple push switch connects the lithium ion battery to the HV generators

The EMP generator battery push switch
The EMP generator battery push switch

The input voltage is 4 volts, with a current of 4 amps when the generators are working flat out and the capacitors are charging; thus making a Li-ion battery the obvious choice.

https://electrosparkles.com/exploding_wire_emp_electromagnetic_pulse

The push to make switch is pressed intermittently, to prevent overstressing of the generators

Showing the old cooker switch and the push switch
Showing the old cooker switch and the push switch

Initially, the output voltage will be less than 7.5kV at 1ma (0.001 amp), making the efficiency about 46 ‰ .

Okay, so it’s called

“an exploding wire”

but a bang is to be avoided at all costs

A vacuum chamber for EMP work
A vacuum chamber for EMP work

I call jet aircraft and rockets “blowlamps in the sky” because anything which produces sound is less efficient than if it were silent. The same applies to our device!

My homemade vacuum chamber ensures greater energy efficiency from the plasma explosion, as there is little air to interact with

Another view of the vacuum chamber for EMP work
Another view of the vacuum chamber for EMP work

Now that the setup is complete, it becomes possible to add arrays inside the vacuum chamber and to add gases (as with a thermionic valve) to increase EMP efficiency; thereby enabling EMP to be measured way beyond the chamber.

Looking at an electromagnetic pulse (EMP) using a storage oscilloscope and xy axis magnetometer

An oscilloscope and magnetometer
An oscilloscope and magnetometer

The production of an electromagnetic pulse should occupy a period of microseconds or less, but with very high energy. 

For a given voltage, having high VALUE capacitors in the EMP device is counterproductive, as they present more inductive reactance than smaller value capacitors do, when charging and discharging.

Physically large capacitors, which I got as a birthday present, but of relatively small value

Huge capacitors - over a foot long!
Huge capacitors – over a foot long!

Exploding Wire Plasma Energy Device Electromagnetic Pulse (EMP) Generator: Continued

The increased time-constant presented by large value capacitors, allows the same energy to be dissipated over a greater time period; thereby defeating the object – which is to produce a super sharp (but very short) EMP!

 Huge capacitors - over a foot long - end-on view

Huge capacitors – over a foot long!

Once a magnetometer ⇑⇑or similar inductive load is connected to the oscilloscope xy inputs, an electromagnetic pulse is readily observed as a sharp spike on the oscilloscope window.

Dorian.

 

 https://electrosparkles.com/exploding_wire_emp_electromagnetic_pulse

A reminder to all visitors

I do hope that you have enjoyed the Exploding Wire Electromagnetic Pulse (EMP) Generator project.

Please may I ask all visitors to post links on their social media accounts directing visitors to electrosparkles.com so that more people can enjoy the website, and join in to present their technical ideas for featuring.

Heartfelt thanks

Dorian.