The impedance values of current sensing resistors are generally in the range of several milliohms. Measuring the high frequency characteristics of such a device can be a challenging task.
In these application notes we show two different methods where we use the Bode 100 to measure the impedance of 20 mΩ resistors.
- The first document shows how to measure a 20 mΩ resistor using the impedance adapter B-WIC
- The second document describes the Voltage/Current method with B-WIT 100
- The third document uses the Voltage/Current method to measure the inner impedance of a 4-wire current shunt
Please Note: The Shunt-Thru measurement method is the preferred method for very low impedance measurements at high frequencies. BAS 3.X directly supports Shunt-Thru.