Thermal energy? Where do you put it to get thermal energy?
Bkmk
Guessing a thermopile.
Many thermocouples wired together.
More guessing, they found a way to manufacture them on a thin wafer?
Over hyped, I was doing this 10 years ago. There’s energy everywhere, when you flip on a light switch your finger transfers energy to the switch lever. They’re just converting it like solar cells convert photons into electricity. Here’s a good explanation from the company that was doing this 10 years ago:
https://www.enocean.com/en/technology/energy-harvesting/
Consider that you can capture and store small amounts of energy for long periods of time (like charging a battery from wind or solar) to have enough to do something that takes a lot of energy for a short period of time (like sending a radio message).
Not good enough...I,want one that works below absolute zero.
There has to be a difference in temperature for this to work. Without some kind of heat flow no work from heat can be done.
“Can anyone explain this to me?”
The IoT is expected to connect pretty much everything in the next generation of Internet.
Imagine that things like salt and pepper shakers have sensors that tell a restaurant owner information like which ones need to be refilled, or which ones fell on the floor and might need to be run through the dishwasher.
You might ask what most people ask: Why would anyone need such a thing?
The reason for doing this is quite simple: Because we can.
I’m not saying that it is good. I’m saying it is inevitable. Unless, somehow our culture takes a sudden shift toward a more Amish-like or luddite view of tech, this will happen.
What is making this possible is the continual decrease in size and cost of microchip technology. When it costs less than a cent to connect things, then the cost becomes negligible and innovation develops around gathering and processing the data from IoT devices.
But these micro- and even nano- (in some cases) technologies require some source of power. The amount of power may be small and even diminishing, but they generally require a power source. And no one is going to use IoT salt and pepper shakers that require plugging in to recharge.
Thus, battery-free power sources have great value for the IoT trend.
The Evercell technology employs a unique design and advanced materials to harvest thermal energy in any environment where the ambient temperature is above absolute zero
...
This could solve Global Warming.
What is a loT sensor? Tried a search for it and got parking lot technology.
These devices contain a loop antenna that gathers radio frequency energy without tuning to a specific frequency. That antenna is connected to a bridge rectifier that exhibits an extremely low forward voltage drop. The resulting DC current can be used to power a device directly or operate a charge pump to raise the voltage. That can be applied to a battery charger or capacitor for energy storage.