MR8740T_user_manual_eng_20191016H.pdf - 第147页

142 Conguring the Numerical Calculation Settings Calculation type Setting Description Example of screen Time to level Pulse count T arget channel (Analog, logic, waveform calculation) Allows you to specify calculation t…

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141
Conguring the Numerical Calculation Settings
Calculation type Setting Description Example of screen
Rise time
Fall time
Target channel
(Analog, waveform
calculation)
Allows you to specify
calculation target
channels.
Time (%)
(5%→95%
to 30% →
70% or 95% → 5%
to
70%→30%)
Allows you to specify
which part of a
waveform between the
upper and lower limits is
used for calculating the
rise time (or fall time).
A rise time (or fall time)
is calculated based on
the percentage, which
is specied here, of
the range between the
upper and lower limit
values.
Stat. Top
Detects a value
obtained rst from the
beginning within the
specied range.
Average Calculates the
average, maximum, or
minimum value for each
parameter within the
specied range.
Max
Min
X-Y area
Angle of XY
waveform
Target channel
(X, Y)
(Analog, waveform
calculation)
Allows you to assign
channels to the X- and
Y-axis.
With the [X-Y area]
setting, set [Method].
(Coordinate
method
, Trapezoidal
approximation)
Calculates an X-Y
area according to a
calculation method.
7
Numerical Calculation Function
142
Conguring the Numerical Calculation Settings
Calculation type Setting Description Example of screen
Time to level
Pulse count
Target channel
(Analog, logic, waveform
calculation)
Allows you to specify
calculation target
channels.
Level*
Detects the time when
a waveform crossed
the level specied here
or a pulse count that
crossed the level. No
setting is available for
logic channels.
Slope
Detects the time when
a waveform crossed
the level specied here
in the positive direction
or a pulse count that
crossed the level in the
positive direction.
Detects the time when
a waveform crossed the
level specied here in
the negative direction
or a pulse count that
crossed the level in the
negative direction.
Filter(samples)
(Off
, 10 to 10,000)
Allows you to enter
duration used to
determine that a
waveform crosses the
specied level.
Only if a waveform does
not cross the level again
within the specied lter
duration after it has
crossed the level, the
waveform is considered
to have crossed the
level.
This is useful to
eliminate false level-
crossing events caused
by noise.
*:
The range that can be set are between −9.9999E+29 and −1.0000E−29, 0, and between +1.0000E−29 and
+9.9999E+29. A value to ve signicant gures can be set (a value to 10 signicant gures can be set for a
time of the level at time setting).
143
Conguring the Numerical Calculation Settings
Calculation type Setting Description Example of screen
Level at time Target channel
(Analog, logic, waveform
calculation)
Allows you to specify
calculation target
channels.
Method: Negative
Allows you to set the
time-specifying method.
Time
Time
Allows you to enter a
time for obtaining a
measured value with
the trigger point position
xed at zero.
Calc. No. Calculation
No.
Allows you to choose
a calculation number
when you use numerical
calculation results.
You cannot specify a
number that exceeds
the calculation number
you specify.
Specifying a range is
not available.
+Width
−Width
Target channel
(Analog, waveform
calculation)
Allows you to specify
calculation target
channels.
Filter(samples)
(Off
, 10 to 10,000)
Allows you to enter
duration used to
determine that a
waveform crosses the
specied level.
Only if a waveform does
not cross the level again
within the specied lter
duration after it has
crossed the level, the
waveform is considered
to have crossed the
level.
This is useful to
eliminate false level-
crossing events caused
by noise.
Stat. Top
Detects a value
obtained rst from the
beginning within the
specied range.
Average Calculates the
average, maximum, or
minimum value for each
parameter within the
specied range.
Max
Min
7
Numerical Calculation Function