according Nyquist then analog signal (HAL, before ADC) should be limited to less than f_fample/2.Some kind of HAL sensor, probably slow, I don't know if it can measure 10kHz (10 samples at a ms pulse),
Copper has an awful temperature coefficient. So a lot of error according temperature.would be possible to measure directly from the copper strip
This sounds like my spot welder, Harbor Freight's finest. But way overkill for sub-mm wire. and wire-to-wire stainless 1/16 was iffy (skill level perhaps, but also easy to overpower the "workpieces".1. First estimate energy [J] per weld and then the resistance before and after. It may need a fixture with contact pressure.
2. Then using MPT theorem match the impedance to maximize power transfer with sufficient energy for a deep diffusion weld.
3. Then choose the weld process and method.
Forget about transistor switching capacity of thousands of amps. Most welders take time and 150A to penetrate and not detonate the surface with an explosive spray of vaporized surface particles. This reminds of the dumb time I tried to remove a staple near the breaker panel with power on and melted the tip of a heavy duty screw driver which vaporized copper on my plastic lens glasses in a flash.
I recall a pal of mine had a hand press tool with 1000:1 AC transformer to heat bond sheet metal with low v high current from mains in a couple seconds. It’s all about matching the energy levels and time durations for heat transfer.
Good idea ...Then I^2*R*t=E energy process can be estimated u
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