4 ms·

I can't find any information on how these are powered. Do they partly use current flow from coronal discharge? Or is it some long lasting battery?

• 127361 3y ago
  Likely from the magnetic field from the conductor. They even have street lights that are powered this way. https://livrepository.liverpool.ac.uk/3005516/1/TPEL2436702%20Sheng.pdf https://livrepository.liverpool.ac.uk/3005516/1/TPEL2436702%... https://www.youtube.com/watch?v=KqbIhZO7SJc https://www.youtube.com/watch?v=KqbIhZO7SJc
• xnzakg 3y ago
  Not sure how much I am allowed to go into detail here, but can confirm what 127361 wrote: the sensors harvest power from the electromagnetic field in normal use. However, considering "power outage detection" is a selling point, you can draw your own conclusions about there being some power storage onboard ;)
  • bozhark 3y ago
    power harvest and large/super caps? neat
    • nomel 3y ago
      I think the first assumption should be a boring old battery. Probably some lead acid type, since discharge would be very very rare.
  • mistrial9 3y ago
    probably patented by now? disclosed yet?
• Paddywack 3y ago
  A few years ago I was thinking of how to use powerlines to recharge drones using the electromagnetic field. Imagine a drone hanging from a line like a bat, recharging in remote areas. I think MIT had a patent for that. This could be the perfect use case for that too..?