IET Labs, Inc. RLC Digibridge 1693 User And Service Manual page 127

3. Reduce the measurement frequency.
4. If cable and test fixture capacitance can be
reduced, do so.
5. If this resonance effect is not easily avoided,
consider that the DUT may be self-resonant.
If so, unqualified measurements of appar-
ent inductance are misleading. Try a set of
measurements of apparent inductance at sev-
eral frequencies sufficiently low (or high) to
avoid the resonance failure display. NOTE:
If RLC is negative, with indicated units of
mH or H, the measured reactance is capaci-
tive, although the RLC display is a number
of millihenries or henries.
Operation
1693 RLC Digibridge
103