I am trying to gain a better understanding of the principles of the Rogowski coil. I understand that an AC current carrying conductor running through this coil induces a voltage in the coil proportional to the rate of change of current in the conductor which can be measured with a DVM. What I'm having a problem with is the integrator associated with its use. Is this necessary for frequencies above 60HZ or any range? Can this coil be calibrated to read say 1vac at 1amp AC 60HZ as a basis and then be used over a wider range?
Wondering