Performance Veri
fi
cation
Rise Time and Bandwidth
This procedure veri
fi
es that the probes meet the rise time speci
fi
cation by directly measuring the rise time. The bandwidth of the
probe is then calculated using the measured probe rise time.
1.
Connect a BNC cable to the output of the
pulse generator.
2.
Connect the other end of the BNC cable to
the HF current loop.
3.
Set the pulse generator output and pulse
width to maximum. (50 Vp-p, positive
pulse, 100 ns duration, repetitive output.)
4.
Set the oscilloscope to display the entire
waveform on-screen:
Vertical sensitivity to 200 mA/div
Horizontal to 20 ns/div
Trigger at 20%
Averaging on (32)
Coupling to DC
Automeasurement to Rise Time
20 A Current Probes Instruction Manual
69
