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Extremely Simple Taser Concept

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coillah

Fri Aug 01 2008, 09:16PM

Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304

Ok. Correct me if I am completely wrong but...

to create a really simple taser, all you would need to do is connect a small power source in parallel with a capacitor in parallel with a gap to be closed with contact with the taser?

cjk2

Fri Aug 01 2008, 10:36PM

Registered Member #51 Joined: Thu Feb 09 2006, 04:17AM
Location:
Posts: 263

Yes, I don't see why people want to create such devices tho. What is the appeal of making something to hurt yourself/others with? If you want a device for self defense, I would almost suggest you buy one because if you are asking such a simple quesion you might be unsafe with what you make (too much energy storage, etc.). Commercial tasers use an arrangement that looks like :

Battery > Inverter > Capacitor > Sparkgap/voltage trigger > Pulse transformer > "Offending person"

Here are some pictures: http://www.bigclive.com/stunner.htm

rp181

Sat Aug 02 2008, 02:08AM

Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529

capacitors are too much current, those could easily kill, commercial cant.

Electroholic

Sat Aug 02 2008, 02:35AM

Registered Member #191 Joined: Fri Feb 17 2006, 02:01AM
Location: Esbjerg Denmark
Posts: 720

yes, and cap>sparkgap>pulse transformer configuration will give you enough voltage to go through clothings.

Backyard Skunkworks

Sat Aug 02 2008, 05:15AM

Registered Member #1262 Joined: Fri Jan 25 2008, 05:22AM
Location: Maryland, USA
Posts: 451

You wanna aim for around 20 pulses per second of 0.5J each if I remember it right...

quicksilver

Sat Aug 02 2008, 02:08PM

Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679

A heck of a lot of research goes into a defensive electrical weapon today: more than many people realize. It's well recorded that 5ma has resulted in lethal fibrillation.The level of current is one issue that entire teams work on and they settle mostly well below 2ma. But PLACEMENT means even more. The "Taser" concept is complex due to the spread of applied energy (across the chest in many cases).
But even if that is to be localized by a two prong contact device there are a lot of guys who can attest to what happens when the current finds a "path-way" through the body and results in a very debilitating wound; that does not heal well. This is very nasty stuff. Once the level of energy can overcome the resistance of thickened or calloused skin or light clothing, it's too high to be safe in all cases. Thus the Taser concept made use of darts that went beneath the top skin layer as that gave more control than a surface 'touch" design (in addition to the range issue provided in that design).

If I were ever even contemplating the development of an electrical weapon I would study the research on electrocution and accidents involving pathway routing of energy in accidents. The complexities are staggering (no pun intended). You need to remember that what gives a nasty but mostly harmless shock on the work bench won't even approach what is needed to stop a determined drunk, enraged and Hell bent on harming another person. That level of energy must be pretty high, indeed!

Cap discharge was actually something that Taser was considering when the "Taser rifle" was a development ear-mark. It seemed like cap discharge was the way to go to many people. But to get the thing to SAFELY incapacitate apparently was very difficult.
TTBoMK Taser had it on many development platforms but has not fully implemented the idea for law enforcement due to the complications of safety for the various idiosyncrasies that could arise.

Amnesty International took up the issue of electrical weapons not only because they had been misused in the torture of suspects around the world but because of the level of fatalities seen even when used in their intended methods. Capasitivie discharge being one of the primary "designs" that resulted in unintended complications when incorporated in such devices.....they (C/D oriented devices) are just not exacting enough to allow for a margin of safety. Enough energy to defend against attack is enough to do more harm than intended, was the consensus of those people who have actually worked in that field & would even speak publicly.

See Amnesty International & their enormous amount of information on electrical weapons. They have pages and pages of links to research & development in various countries; including the complications therein. Taser is in Scottsdale Arizona (I live in that state also) and they released a lot of information at one time early in their history.

Seoul_lasers

Fri Aug 15 2008, 10:12AM

Registered Member #1630 Joined: Sat Aug 09 2008, 11:36AM
Location: Seoul Korea
Posts: 115

Well, The commercial units have been linked to fatalities. 5mA @ 60,000VDC is more than enough to seize muscles. That includes the heart. SO... while these devices are less than lethal for 80% of the population, people who are already on drugs or with a heart condition -- the shock of one of these units is LETHAL.

I have seen a commercial unit up close... It is essentially a cascade circuit not unlike (identical) to those old color/B&W TVs. The main difference is that the cascade delivers 45-60Kv across gap.

quicksilver

Fri Aug 15 2008, 03:15PM

Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679

What this page :

proposed was (IMO) lethal. I don't believe that they actually got the level of current claimed because of the crude testing method; but I would still never consider using that on any living being {in any instance a firearm would be more appropriate - as the result would probably be the same.....}
It's a very vicious device but it seems like the fellow got pretty into doing it. In any event, it's a pretty impressive little design.

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