I am trying to use the OMICRON C-Shunt Precision shunts (the 10 mili ohm, 12,5A model, see picture) to determine the magnetization of a material. This process will be used in an induction kettle to test and see if the kettle can go forth with the cooking of water or if the wrong material is placed on the plate.
We wanted to use a magnetic switch but it will have to many interferences to be accurate.
You can use the current shunt to measure the current draw of the induction heater. I imagine the current draw will change when a heatable object is put in the induction field. I expect the shunt resistor is put between the load and Ground and the voltage across the shunt resistor is proportional to the current through the load. For an AC load you need appropriate signal conditioning to keep the value within the range tolerated by your ADC (0V to 5V for the typical Arduino analog input).