epilot
Member
Overclocked said:Holy crap you can make your own...
**broken link removed**
yes that link is what i wanted to put at a new topic
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Overclocked said:Holy crap you can make your own...
**broken link removed**
Overclocked said:That article makes a good point, but think about it. There are millions of RF signals being transmitted, including Noise and sound waves. So what if we could put that energy to good use? That will probably be the future, not gas, not electric, probably not even hydrogen.
What about magnetism, The earth has a magnetic field cant that be put to use?
epilot said:but if we could find how we can amplify these small signals
Nigel Goodwin said:epilot said:but if we could find how we can amplify these small signals
There's no such thing as an 'amplifier', they don't actually 'amplify' anything - all they do is make a larger copy by modulating the power supply.
Think of it as a photo-copier! - you can 'amplify' your small picture, but you have to ptovide the larger paper, the toner, and the electricity to run the copier.
You can certainly charge batteries via RF, but the inverse square law applies - to do it over 100m you could blast high power out of a highly directional arial, and use a similar highly directional aerial at the receiver to feed a rectifier and charge the batteries. However, it's not very efficient, and you're likely to fry anyone walking inbetween :lol:
epilot said:no Nigel, my mean about amplifying was not a real amplifier device like what we use in the radio and TVs my mean was if we could concentrate and focus these air electromagnets then perhaps we could use from them...
epilot said:http://www.tsgc.utexas.edu/tadp/1996/general/wpt.html
that paper describes about a wireless power transmission way
that can generate more than 50W of power this means nore than 13A at 3.6V so if that is possible then there is no problem!but...
oops!
epilot said:http://www.extrememhz.com/bfmouse2-p1.shtml
i think that mice are a good example of wireless transportation
although yet i dont know how they transmit and recive the signals without any battery?
Nigel Goodwin said:epilot said:http://www.extrememhz.com/bfmouse2-p1.shtml
i think that mice are a good example of wireless transportation
although yet i dont know how they transmit and recive the signals without any battery?
The article you posted the link to explains it?.
You don't need RF to use coils to couple power from a mouse pad to power the mouse on top of it. An ultrasonic frequency would requiremstechca said:I don't think an RF signal is sufficient to charge anything, so I'm afraid coils are out.
audioguru said:You don't need RF to use coils to couple power from a mouse pad to power the mouse on top of it. An ultrasonic frequency would requiremstechca said:I don't think an RF signal is sufficient to charge anything, so I'm afraid coils are out.
coils small enough. The magnetic coupling is good because they are so close to each other.
The primary coil is in the mouse-pad and the secondary coil is in the mouse which is spaced a very short distance away. It is a transformer with a small gap.epilot said:i would like to know more about ultrasonic power transportation
audioguru said:The primary coil is in the mouse-pad and the secondary coil is in the mouse which is spaced a very short distance away. It is a transformer with a small gap.epilot said:i would like to know more about ultrasonic power transportation