Tips on Measuring AC Current

NI-DAQmx

Tips on Measuring AC Current

To measure AC current, insert a precisely calibrated, low-value resistor into the signal path and measure the voltage drop across the resistor. You must then perform high-pass filtering on the resulting signal to remove the DC component. You can perform this filtering using an analog filter or digital signal processing techniques, such as the filtering tools in the analysis library of LabVIEW.