DARPA stellt neue Datensätze für das drahtlose Versenden von Strom auf
https://newatlas.com/military/darpa-sets-new-records-sending-power-without-wires/
DARPA stellt neue Datensätze für das drahtlose Versenden von Strom auf
https://newatlas.com/military/darpa-sets-new-records-sending-power-without-wires/
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From the article
Looking forward to a future where laser beams replace power lines, DAPRA’s Persistent Optical Wireless Energy Relay (POWER) program has set new records for transmitting more power wirelessly over longer distances.
Also from the article
It’s an effort that appears to be paying off with the recent tests in New Mexico setting new records. [Previously](https://newatlas.com/technology/darpa-laser-beam-power-across-distances/?itm_source=newatlas&itm_medium=article-body), the POWER system managed to use a laser to beam 230 watts across one mile (1.7 km) for 25 seconds, and an undisclosed lesser amount of power as far as 2.3 miles (3.7 km). Now, DARPA has managed to increase this to 800 watts for 30 seconds at a distance of 5.3 miles (8.6 km).
Not bad for sending power near-instantaneously without wires.
The system is built around what is called the Power Receiver Array Demo (PRAD), which is a ball-like structure that has a compact aperture to allow a laser beam to enter. This beam strikes a parabolic mirror that scatters the light and shines it on an array of dozens of photovoltaic calls. These convert the laser light back into electricity.