Calibration Method for Rogowski Coil Current Probe

The Rogowski Coil current probe is a commonly used current measurement device, widely used in fields such as power systems, industrial production, and scientific research. To ensure the measurement accuracy and reliability of the probe, it is necessary to Regular calibration. This article will introduce a commonly used calibration method for Rogowski Coil current probes.

The calibration of the Rogowski Coil current probe mainly includes two aspects, namely zero point calibration and range calibration. Zero calibration refers to adjusting the output signal to zero when there is no current passing through the probe. Range calibration refers to adjusting the output signal to the corresponding current value under a known current value.

It should be noted that during range calibration, different current values should be selected for calibration to cover the entire range. During the calibration process, the accuracy and stability of the calibration instrument should be ensured to ensure the reliability of the calibration results.

In addition to the zero point calibration and range calibration mentioned above, other auxiliary calibrations can also be performed, such as frequency response calibration and phase calibration. Frequency response calibration is to ensure consistent measurement accuracy of the probe at different frequencies. Phase calibration is to ensure that the output of the probe is consistent with the actual phase when measuring AC current. These calibrations can be carried out according to specific needs