Omicron Lab Bode 100, Руководство пользователя, Страница: 50 / 133

Figure 7-5: Hardware setup of the One-Port measurement mode.
Since the output impedance of Bode 100 is 50 Ω, the one-port measurement provides highest
sensitivity for a DUT having an impedance close to 50 Ω. The method is generally suitable to measure
impedance values between roughly 500 mΩ and 10 kΩ.
For measurements close to the limits of this method it is highly recommended to perform a careful
User-Range calibration to achieve best results.
Calibration
The One-Port impedance measurement mode does not require calibration to perform a measurement.
However, to achieve highest accuracy a calibration is recommended. Furthermore a calibration allows
to move the reference plane from the output port of
Bode 100 to the end of a connection cable. This
compensates the effect of the connection cable.
For more details on how to perform an Impedance calibration please refer to
8.3.1 Calibrating a
Reflection or One-Port Impedance measurement on page 78.
Typical applications
Typical applications for the One-Port impedance measurement mode are:
• Measuring impedance of passive components.
• Measuring impedance of cables, piezo-elements or any one-port DUT.
50 OMICRON Lab