Thru calibration calibrates the underlying gain measurement and removes gain and phase shifts of the
probes. A 1 Ω resistor is needed to perform a Thru calibration in the Voltage/Current measurement
mode.
Open, Short, Load calibration shifts the reference plane directly to the calibration plane.
For more details on calibrating a Voltage/Current measurement, please refer to 10.3.5 Calibrating a
Voltage/Current measurement on page 102.
Typical applications
The Voltage/Current measurement is suitable for a high variety of measurement applications. It is the
mode of choice for every impedance measurement that measures voltage and current separately.
Typical measurements are:
• Input impedance measurement of active circuits such as power supplies.
• Output impedance measurement of active circuits such as power supplies.
Measurement example
For detailed measurement examples using the voltage/current measurement mode, please check out
the Non-Invasive stability application note at www.omicron-lab.com/BodeManualAppNotes.
8.4.7 External Bridge
The external bridge measurement mode offers you the possibility to use an arbitrarily designed
impedance measurement bridge specifically designed for your special purpose.
Calibration
The external bridge measurement mode requires impedance (open, short, load) calibration.
For more details on how to calibrate the an external bridge, please refer to 10.3.2 Calibrating an
External Coupler or External Bridge measurement on page 96.
Measurement information
The external bridge measurement mode is similar to the Impedance Adapter measurement mode but
allows you to change the channel termination and input attenuators to adjust them according to your
needs.
Measurement example
For a detailed measurement example using the external bridge measurement mode, please check out
the High-impedance measurement application note at www.omicron-lab.com/BodeManualAppNotes.
Measurement types and applications
OMICRON Lab
71
To Next Page
Loading...
