This discussion centers on the feasibility of using piezoelectric materials and the triboelectric effect to generate electrical currents from mild pressure or friction. Participants concluded that piezoelectric materials require significant force to produce a usable current, making them unsuitable for applications requiring gentle touch. The triboelectric effect, which involves generating electricity through friction, was suggested as a potential alternative, though it was noted that it may not meet the desired performance levels without the use of batteries.
PREREQUISITESThis discussion is beneficial for engineers, inventors, and researchers interested in energy harvesting technologies, particularly those exploring alternatives to traditional power sources for low-energy devices.
FTM1000 said:it is possible to build a device that can create an electrical current that can be felt on the skin from a mild pressure by the hand?, dose piezoelectric materials can create enough electricity from friction like rubing them with the hand?.
don't ask for what it is, i just want to know
berkeman said:No, not really. You have to smack piezo pretty hard to get much of a current out of it. That wouldn't fit your application :)
You could probably do something with induction -- like the flashlights that you shake to light them up.
FTM1000 said:do you know what is the application of what i want to do? i can tell you on private if you want cause i can't talk about it her cause of adult restrictions..
the shaking mechanism of a magnet in a copper coil wouldn't fit to what i want.
what about triboelectric effect? i readed an article about producing electricity with friction of human skin on some polymer http://pubs.acs.org/doi/abs/10.1021/nn403838y
it could produce enough current to be felt on the body?
i don't know if it is the same case but i saw this video about triboelectric power and charging of smartphones, in 2:15 there is a demonstration with someone powering several led diods by blowing into this generator
it looks like it can produce significant current from mild rubbing so it can work to some level right? it is enough to be felt on the skin?.berkeman said:The "Mentor" label under my username means that I see all that happens on the PF, so yes, I know what your desired application is.
No, triboelectricity and static electricity will probably not do what you want. What do you have against AA batteries? Or even CR2032 batteries?