53
Measurement in Time Waveform Mode
Y axis zoom factor
In time waveform mode, the Y axis zoom factor is not shown. The zoom
factor can be calculated according to the following equation.
Y axis zoom factor = input range / Y axis upper limit
Note
The Y axis zoom factor is 2
n
(n = 0 to 14), but because
the number of digits in the displayed input range and
the Y axis upper limit is small, the factor may be a
fractional number.
Performing measurement
The screen in time waveform mode shows the uctuation in the measurement
data (acceleration, velocity, displacement, or acceleration envelope curve) in
a graphical format. The display is updated constantly.
The measurement duration that can be displayed on screen is determined as follows:
number of analysis lines / frequency span. (See the “Frequency resolution (
f) and
frame time (T
Frame
)” section on page 72.) In time waveform mode, the measurement
duration is the same as the “frame time” in FFT mode.
Note
In FFT mode, it is possible to continuously record time
waveform data for longer than the measurement duration
available in time waveform mode. For details, see the
“Recording Waveform Data” section on page 77.
For information on measurement using the trigger functions of the unit, see
the “Trigger Functions” section.
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