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the geometry of the material. This is essential and important for cal-
culating the dielectric constant accurately from the traveling time of
the TDR-signal.
•
Make sure the single-shot measurement mode in the
Options Dialog
is activated. This is the default state and usually not necessary.
•
Contact one of the lines on the test coupon and trigger a measure-
ment. Do not change the row in the
Sample List
afterwards.
•
After the measurement a command window shows up. Please follow
the instructions: contact the other line and measure again.
Figure 11: Oscilloscope Window showing
ε
base
measurement
•
After all measurements have been done, please open the
Impedance
Measurement Properties Window
again and set
Mask Start
and
Mask
Stop
in such a way, that the first step from the cable to the (see left
61