Figure 6-9. Reducing Capacitance to Ground
Contact Resistance
Contact resistance between the contacting terminals and the
DUT causes measurement error when measuring large values of
capacitance, esp ecially in D (dissipation factor) measurements.
When measuring large capacitance values, the four-terminal
measurement contacts have the advantage of less measurement error
as compared to the two terminal method. Select a test xture whic
h
can hold the DUT tight to stabilize the connection.
6-12 Measurement Procedure and Examples
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