Keysight Technologies 16034G, Operation Manual

Page: 20 / 27

20 Chapter 2
Operation
DUT Measurement
DUT measurement over 3 MHz
Before performing DUT measurement over 3 MHz, performing load correction is
recommended.
The proportional error factor in the additional error caused by the fixture is in proportion to
the frequency squared. Therefore, the error increases greatly as the frequency goes high. To
reduce this error, perform load correction.
1. Set the 100

SMD resistor on the fixture the same way as a DUT measurement, and
perform measurement at 3 MHz to determine the value of the 100

SMD resistor.
2. Set the measured resistance and inductance values to the instrument as load value.
3. Perform load correction.
Measurement values can vary depending on contact pressure when measuring ferrite
inductors or multi-layer ceramic capacitors with high permittivity. When measuring
this kind of device, removing the E-ring can weaken the spring pre-load. However, this
technique may increase contact resistance and thus degrades the accuracy of D parame-
ter measurements.
Be sure to keep the contact pins clean at the points where they make contact with
DUTs.