Keysight 16117C, Operation And Service Manual

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Making a Custom T est Fixture
This section describes how to make a custom test xture for the 4339B .
Note
When you make a custom test xture using the 16117C, you must observe the
usage guidelines described in this section.
Conguration
The 16117C is provided so the user can make custom test xtures for the 4339B . Figure 3-2
shows an simplied conguration of test xture in oating DUT measurement with the 16117C.
Figure 3-2. Floating DUT Measurement Conguration
The BNC connector provides source voltage up to 1000 V . A triaxial connector is used for the
measured signal path. The triaxial connector's center conductor carries the signal. The inner
shield is a Guard, and the outer shield is the ground. Using a guard circuit eliminates the
external noise to the center conductors . The Guard must extend as close as possible to the DUT
contact, but not connected.
F or information about the Grounded DUT measurement conguration, refer to 4339B High
R esistance Meter Operation Manual.
3-2 Operation