6 Measurements and Math Functions
202 InfiniiVision Oscilloscopes User’s Guide
+ Width
+ Width is the time from the middle threshold of the rising edge to the middle threshold of
the next falling edge. The X cursors show the pulse being measured. The Y cursor shows
the middle threshold point.
– Width
– Width is the time from the middle threshold of the falling edge to the middle threshold
of the next rising edge. The X cursors show the pulse being measured. The Y cursor
shows the middle threshold point.
X at Max Y
X at Max Y is the X axis value (usually time) at the first displayed occurrence of the
waveform Maximum, starting from the left-side of the display. For periodic signals, the
position of the maximum may vary throughout the waveform. The X cursor shows where
the current X at Max Y value is being measured.
To measure the peak of an FFT:
1 Select FFT as the Operator in the Waveform Math Menu.
2 Choose Math: f(t) as the source in the Quick Meas Menu.
3 Choose Maximum and X at Max Y measurements.
Maximum units are in dB and X at Max Y units are in Hertz for FFT.
X at Min Y
X at Min Y is the X axis value (usually time) at the first displayed occurrence of the
waveform Minimum, starting from the left-side of the display. For periodic signals, the
position of the minimum may vary throughout the waveform. The X cursor shows where
the current X at Min Y value is being measured.
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