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Termyn8or -> RE: Dose anybody know where I can try.... (3/7/2011 3:53:39 PM)
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"I'm pretty sure Underwriters Laboratory doesn't have a department to deal with sex toys for the electrically inclined. "
LOL bigtime.
I've played with some electrostim, and the body is not a resistor or capacitor, it acts as an inductor in a way. This was determined with an old Wavetek Mdl. 111 frequency generator. I did not monitor the current, but the sensation is stronger with lower frequencies. That's indicitive enough for me, under the circumstances. The sensation became more pleasurable and seemingly more penetrating at higher audio frequencies, Perhaps this is capacitive in nature because that would tend to spread the current more evenly and deeply. I think 60Hz is too low.
Because of what they erroneously call galvanic response, the source should always be current regulated, not constant voltage. Most likely there is a circuit that isolates and rectifies, then generates a higher frequency which is constant current. Maybe variable but there should be a current feedback set up so that the setpoint is current - NOT voltage. Therefore two amps is probably the maximum current pulled from the AC line, most likely the inrush once powered.
It better be because if you pass two amperes through any part of the body it is highly dangerous. More desirable is milliamps, with voltage allowed to rise of fall to regulate the current. I could easily design such a circuit. For safety I would include bipolarity (complementary) SCR crowbar protection as well as a blocking relay if the current rises too high, such as due to an output device short.
I have designed an audio amp, which is pretty much what this would be, with such protection. No relay, but all outputs were shorted out in case of a fault. It is actually patentable but it's too expensive to implement to protect speakers. For a human body, I think it would be worth the expense.
As far as the chair itself, that shouldn't be a problem. In fact I don't think the example was all that great. I'd make it more like a real electric chair, with many more restraint points than "needed" MWA HA HA HA. I'd find a leather guy for that. And just to issue the warning, I CAN DO THIS. No shit. I have woodworking tools, metalworking tools like a lathe and milling machine, a circuit board making kit with most of the trimmings, and I know how to use these.
T^T
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