Rocoil Passive Integrator
The Rocoil® passive integrator can be used in conjunction with flexible Rogowski coils to provide accurate current measurement to more than 1 million amps where an analogue output voltage is required. It is excellent for measuring transient and pulse currents. The integrator uses a simple resistor/capacitor network to perform the integration. The main disadvantage of passive integrators is their limited low-frequency response.