For one of my projects I need to measure if there is a DC current going trough the thick power cable. The current is DC, and my method of measurement has to be non-invasive.
The current going trough the cable will be anywhere from 1A to 50A. Also the measurements don't have to be precise (at all), I just need to know if there is current being drawn (flowing trough cable) or not.
I've found several solutions using current shunts, hall effect sensors but all of them have some upsides and downsides.
I was wondering if someone could suggest a cheap/simple solution for Non-Invasive high power DC current measurement?