How the Instrument Works
System Architecture
Probe selection
Two problems arise when a probe is used to connect an analyzer to a circuit.
1. The probe degrades the circuit under test. The new circuit behaves
dierently than the circuit without the probe. The behavior you see is the
behavior of the circuit with the probe.
2. The transfer function of the probe is part of the overall measurement
system response, degrading measurement accuracy.
Figure
13-6.
The
probe
is
a
part
of
the
circuit
under test.
13-12
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