10-5
IM 253710-01E
Numerical Computations
10
Re-computing
13.
Press the [Measure Exec] soft key to determine all the numerical data over the
measurement/computation period set in the previous pages.
Explanation
The numerical data of the measurement functions can be determined using the sampled
data in the measurement/computation period that is set in this section. This procedure
works for both the normal measurement and harmonic measurement modes.
Turning ON/OFF the numerical computation mode
Select whether or not to perform numerical computation.
• OFF
Numerical computations are not performed. Because none of the numerical data
are determined, the interval between the data acquisition and the waveform display
becomes shorter.
• ON
All the numerical data are determined. The menu used to set the numerical
computation also appears.
Selecting the method used to set the period
Select the method used to set the measurement/computation period from the
following list of choices. For details pertaining to setting the period for each method,
see the following sections.
• Zero Cross
The period can be set using zero crossing points. This method is possible only in
the normal measurement mode. The period that is automatically determined from
the zero level (zero amplitude) points becomes the measurement/computation
period.
• Cursor
The period can be set using cursors. This method is possible in the normal
measurement and harmonic measurement modes. For the normal measurement
mode, the measurement/computation period is the period between the cursors.
For the harmonic measurement mode, the period is from the start position cursor to
8192 points of sampled data (end position cursor).
• Ext Trigger
The period can be set using an external trigger. This method is possible only in the
normal measurement mode. The measurement/computation period is the period
defined while the signal applied to the external trigger input connector is in the
specified condition (
or
).
10.1 Setting the Measurement/Computation Period, Re-computing