
General Information 1
Charge—A New Measurement
N2820/1A User’s Guide 23
On InfiniiVision
Oscilloscopes
To make a Charge measurement:
1 Connect the probe. If an N2825A user- defined head is used,
enter the R
SENSE
resistance as explained in “Probe
Configuration (InfiniiVision Oscilloscopes)” on page 16.
2 Press the front- panel Meas key.
3 Press the Typ e: softkey.
4 Select one of two measurements:
Charge - Full Screen. The Full Screen measurement
interval variation measures the value on all
displayed data points. For more information, refer
to the oscilloscope’s Help system.
Charge - N Cycles. The N Cycles measurement
interval variation measures the value on an integral
numer of periods of the displyed signal. If less than
three edges are present, the measurement shows
“No edges”. For more information, refer to the
oscilloscope’s Help system.
5 If more than one N2820/1A probe is connected to the
oscilloscope, softkeys appear that allow you to specify the
channel on which to perform the measurement.
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