SW welding intergrator

What is an integrator?
• The output signal of a Rogowski coil is a time differential, maintaining a 90° phase relationship with the measured current signal. Additionally, the output of a Rogowski coil is a weak voltage (commonly 100mV/kA). The integrator amplifies the signal and compensates for the 90° phase shift. The output of the Rogowski coil is proportional to the frequency of the measured current. After processing by the integrator, the output signal becomes solely proportional to the amplitude of the measured current signal. By measuring this signal, the primary current can be more directly reflected. However, integrators do not perform ideal integration, so parameters such as bandwidth range and power consumption must be considered during use.
• Integrators can output AC/DC voltage signals, AC/DC current signals, digital signals, etc.