Even Possible??

How would transmitting this much power ever work with out inducing voltages on a lot of other things.

Just seems almost impossible to my simple little brain.
 
hbiss said:
People complain about 5G, imagine what will happen if something like this is tried. 🤬

-Hal
Click to expand...
I seen where they have a trial length of roadway set up (can't remember where) with wireless EV charging in the roadway - charge as you drive. Though I think it is something rather impractical mostly from cost perspective especially if you want to have it all over the place, the general comments were complaining about potential EMF issues more than anything else.
 
Dsg319 said:
How would transmitting this much power ever work with out inducing voltages on a lot of other things.

Just seems almost impossible to my simple little brain.
Click to expand...
I didn't look at OP link but would think it at least would have to be pretty narrow and directional point to point type of thing rather than being a general broadcast type of thing. If not look at all the energy that likely is lost just in transmission as well as how easily one could possibly steal some of that energy without paying the provider. Signal transmission is low power and any value is in the information of the signal that is being transmitted and can be encoded so it is more difficult to steal that information.
 
retirede said:
If you ever charged your phone wirelessly, you’ve probably noticed the heat generated. And that’s only transmitting a few watts a very short distance. Now, multiply that by several orders of magnitude!
Click to expand...
My phone usually is warmed up even when charged from the wired connection I presume the battery puts out most of that heat?
 
When buying a new car it had an option for a wireless phone charger. The instructions say not to put loose change or other metallic objects there due to possible heating.
 
Just watched the video on the company doing it and the way they explained it would be point to point much like microwave (WiFi) transmission.

Only they said when the beam would get interrupted such as a bird or something flying through it, it would immediately momentarily I guess shut off.


How is that going to work flawlessly. Or even close.
 
Seems like this was tried at Wardenclyffe a long time ago. A bunch more times after that too. Power goes to lots of the wrong places and very little ends up where you want it. Sound waves, lasers all sound kind of high loss and potentially dangerous.

Looking to milk a funding source for some money. It's all the same with those types of guys. Marketing guys driving the science, driving it right off a cliff
 
Not new technolog;y.

A few decades ago had a NASA contract to build a few kW solar array on Haleakala and beam the power to Mauna Loa with microwave as a demonstrator for possible orbital solar array to ground power link.

Got the solar array built but never got the funding for the microwave link.
 
Agreed with a bunch of the above.

Wireless transmission of energy is well known and been used since the dawn of radio.

Getting that energy specifically to one destination, doing it efficiently, and doing it cheaply are the problems.

The article mentioned powering a sensor with laser energy down a fiber optic cable. This is perfectly doable, and great if you need galvanic isolation (say a mV current sensor sitting at thousands of volts common mode voltage. But the power going to the sensor is a small fraction of the power going into your laser.

One new concept mentioned in the linked article that sounds like fun: using ultrasound to modify the air to guide em energy. I don't know the specifics but I bet you could make the equivalent of a fiber optic, but for microwaves.

I certainly wouldn't want to interrupt a high power em link with my head :)

-Jonathan
 
retirede said:
If you ever charged your phone wirelessly, you’ve probably noticed the heat generated. And that’s only transmitting a few watts a very short distance. Now, multiply that by several orders of magnitude!
Click to expand...
The charger powers up when it senses the metal receiver on the phone but I don't think the phone has any way to tell it to power down when the battery is full, so then the power from the charger goes to heat.
 
You must log in or register to reply here.
Top