Interesting gadgets, too expensive still for what is inside. I have pondered making may own but not much into cooking. Bearing heaters are distant cousins, they let you slip the 'turn' of the bearing over a transformer core leg and heat it fast and repeatably to expand it for dropping onto a shaft with a shrink fit.
The heating is via eddy current fields (no EMP) so you need a conductive 'pot' on the cooker before it will work correctly. The frequency should not be particularly high perhaps 100-120 Hz. Very little of the AC magnetic field will penetrate a good electrical conductor (such as a copper, aluminium or silver plate/sheet) and if you are nervous you can add a sheet of iron or mu-metal to block out any residual field that bothers you (just check the temperature handling and curie point of the mu-metal before you pay for it).
There was an up-market eddy current heated soldering iron but this had the magnetic coil enclosed in the bit so no expected field leakeage.
The built coocker in profiles may have slightly low temperatures but hacking it could do the trick. A South African made similar hotplate (similar price too) claims and appears to have a temperature sensor but I have only seen the units at shows so not sure, if a non-contact IR thermometer is built in then it could indeed be an interesting heating plate controller.
Kalle
--
Johannesburg, South Africa
--- In Homebrew_PCBs@yahoogroups.com, Mark Lerman <mlerman@...> wrote:
>
> Hi all,
>
> Anyone have any thoughts about using this to solder pcbs - it would
> seem easy to hack the controls of the cooktop to create soldering
> profiles. But, would the "inductive" heater damage the ics?
>
> <https://www.nuwavepic.com/?ref_version=PPC-ADWORDS-PN07&gclid=COKKu_WqxbQCFcuZ4Aod9h4AxQ>
>
> Mark
>