a I want to make a sensor that can read the voltage/current at the node vin, no matter how the mismatch between the source and the load. I could always find the Zeq by using this Vin reading / Iin reading to find out the Zeq right? If i multiply Vin and Iin, I should get the power delivered to the Zeq which equals to Power generated by the source - power being reflected. Please correct me if I'm wrong about this