Has anyone heard of a contact-less EMS(Electrical Muscle Stimulation) device or know how to create o

EMS (Electrical Muscle Stimulation) devices are quite popular these days in many fitness studios around the world. Does anyone know of a EMS device that can function without actually being in contact with the person? Or could someone explain how such a device might be created?
Thank you,
Erik

Hi Erik-I don't think it is possible to create a contact-less EMS device.  Muscle stimulation requires low voltage DC pulses, which would require direct contact. By using high frequency AC it is possible to induce heating in the skin without a direct connection, but this would not stimulate the muscles (although it could soothe muscle soreness!).-Rick

Hi Rick,Thanks for your reply!
So, a high frequency AC device could be created that could heat a person's skin without contact. From what distance could the device be effective? 5 feet? 10 feet?

And what would the person feel? Would they feel any kind of shock? Or just warmth?
Erik

A low powered device would need to be very close to the skin.  A higher powered device could be further away.  This is the same principle on which a microwave oven operates.  One or more of the contractors for the U.S government is working on a non-lethal crowd control device that can be used from a distance and makes people uncomfortable enough that they will want to leave the area.
Now for the caveats:  The things we are talking about here can be dangerous-even lethal if used improperly.  One of the concerns with the crowd control device is that it could cause blindness or sterility if a person stood in the field too long.Plus, the Federal Communication Commission (FCC) doesn't take kindly to unlicensed RF emissions.  As far as what a person would feel- They would perceive heat, not electric shock.Please be careful and do lots of research before you pursue this.-Rick

Hi Rick,
Thanks for your reply!I am not trying to build such a device.I am trying to track down a device which was used against me.
I felt an itchiness in my upper chest area. I noticed a stiffness in the muscles of my chest for a few days.It felt similar to an EMS device.
Maybe, it wasn't electrical. I'm really wondering now.

Erik

Wow!  If you find out what it was, please let us know. You don't work for the CIA, do you?
-Rick

I will let you know when I find out. I live in Germany and have been having problems with the German secret police. It seems to be a device they have created.

Erik

Do you carry an offensive weapon? as it may be millimetre radar being used to examine you at a distance. 

What do you mean by offensive weapon?

Millimetre radar? Please explain.

Concealed weapons such as hand guns, knives, or even explosives. Now I am sure that you do not carry these items, if you are talking to this type of community, but if a state secret police are interested in a person then they might be scanning subjects for suspect items?Millimetre radar is used for security scanning in airports, Google for further information. I am not sure if the scanning can be done at a distance but if it were then the body under observation would probably get hot.

Hi Erik- A couple links you might find interesting:Active Denial System
Ultrawideband through-wall imaging
-Rick

Not carrying any concealed weapons. This is Western Europe, not the U.S.
The device can operate from a distance. I get an itching sensation from it. Definitely feels electrical in nature. It seems to be some variation of an active denial system. Probably a custom version.

The use of the device I would guess is meant to annoy, irritate like an active denial system. I think this is their own custom, portable version they have created. Being a governmental body, they would have access to unlimited technical and financial resources to create such a device.

Thanks for the links Rick!
Erik

Rick,In the Wikipedia article on Active Denial System, it says it is a non-lethal device.But earlier in your posts, you mentioned that it can be dangerous even lethal:

>Now for the caveats:  The things we are talking about here can be
dangerous-even lethal if used improperly.  One of the concerns with the
crowd control device is that it could cause blindness or sterility if a
person stood in the field too long.Plus, the Federal Communication
Commission (FCC) doesn't take kindly to unlicensed RF emissions.  
Is the use of these types of devices dangerous?
Also, do you know whether wood or the presence of trees would block such a device?What about metal? What would be the effect if a sheet or block of metal was between the device and a person? Would the ADS still be effective against the person? Since metal is a conductor of electricity. Do you know what types of things would block an ACS device? A sheet of rubber or Latex?

Erik

Hi Erik-  I think you're taking my comments out of context. I said "IF USED IMPROPERLY it could be dangerous or even lethal".  If a person was restrained and could not move out of the field then it could be harmful.
Dry wood would do little to attenuate the field.  Growing trees would attenuate it to some degree. Metal would probably be a good shield. Rubber or latex would do nothing against it. 
My best advice is- don't be in a situation where and Active Denial System would be used against you!-Rick

Rick,
>A low powered device would need to be very close to the skin.  A higher powered device could be further away.  This is the same principle on which a microwave oven operates.  One or more of the contractors for the U.S government is working on a non-lethal crowd control device that can be used from a distance and makes people uncomfortable enough that they will want to leave the area.

Can you tell me how to create such a device or refer me to someone who can? Or can such a device be purchased anywhere?

I would never have the intention of using such a device on anyone.  But I have been in discussions with the local police regarding the electrical attacks I suffered recently. And their one contention is that such a device would not be possible. Perhaps, is there even any documentation that could define how such a device could be created?
Thank you,Erik

Hi Erik -- I fear you may be making us uncomfortable asking us how to build such a device.
Rather than ask how to build one, a better question might be"how to build a detection system that can detect if such a device is being used against you"

Hi Max,Thank you for letting me know! I absolutely thank everyone for making very helpful comments. I have been a victim of these attacks over the past several months and would absolutely have no intention of actually building such a device to use on anyone. I apologize to anyone who might have been made uncomfortable in any way by my comments.
I have been placed in a tricky situation of trying to convince the police that such a device could exist. This is why I ask how to build such a device. But I won't ask this anymore. I realize I have enough information to make a case. I am starting to think that maybe the police also know such a device can exist. But are denying it for other reasons.
I am also asking questions to look for ways to not only detect but to defend against such attacks. But yes, it would most definitely be very nice to have a detection system that can detect all of these potential "non-lethal" weapons!Once again, thank you very much for your comment!Erik

Rick, I understand what you're saying. But thank you for reiterating your point. These things can be dangerous and potentially lethal! That is very good to know! And I am experiencing first hand how dangerous these "non-lethal" weapons can be. They are most definitely weapons that can do serious injury and harm.
Thanks for the advice! You are absolutely correct! I will do my best to stay out of their way. But when you are dealing with the secret security apparatus of a foreign country, this is easier said than done. Therefore, for my personal safety, active counter measures are required as much as possible.
Erik

Rick,
Can you recommend any type of eyewear that can protect from microwave attacks?Erik