13-9
IM WT3001E-51EN
Cycle-by-Cycle Measurement
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Index
Explanation
• Synchronization Source
The synchronization source defines the cycle (period) over which the cycle-by-cycle
measurement data is calculated. This instrument measures the voltage, current,
power, and other parameters of the input signal for each cycle of the input signal
selected for the synchronization source. For example, This instrument measures
the rms values for up to 3000 consecutive cycles from the first zero-crossing of the
synchronization source signal after the measurement is started.
• Display Position of the Synchronization Position
Cycle by Cycle
Synchronization source
for measurement
Measurement cycle count
• Selecting the Synchronization Source
Select the synchronization source from below. The selectable items vary depending
on the installed elements.
U1, I1, U2, I2, U3, I3, U4, I4, and Ext Clk
*
* If you select “Ext Clk,” cycle-by-cycle measurement is performed using the frequency of the
signal applied to the external clock input connector as the synchronization source.
• When Setting the Synchronization Source to Ext Clk
Apply a clock signal to the external clock input connector (EXT CLK) on the rear panel
according to the following specifications.
EXT. CLK
• Ext Clk Specifications
Item Specifications
Connector type
BNC connector
Input level
TTL
Input waveform
50% duty ratio rectangular wave
CAUTION
Applying a voltage outside the range of 0 to 5 V to the external clock input
connector (EXT CLK) can damage the instrument.
French
ATTENTION
L’application d’une tension comprise en dehors de la plage 0 à 5V sur le connecteur
d’entrée d’horloge externe (EXT CLK) risque de provoquer un endommagement de
l’instrument.
13.3 Setting the Measurement Conditions
