Hioki MR8740-50, Instruction Manual

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155
Numerical Calculation Types and Descriptions
Calculation
type
Description
Pulse count
Counts the number of pulses that crossed the
specified level in the positive (or negative)
direction.
For the pulse counts, it is considered as one
count that a period between the point when a
pulse crossed the level in the positive direction
and the point when the pulse crossed the level
in the negative direction (otherwise, between
that in the negative direction and in the positive
direction).
Settings: Level , Slope , Filter
0
2 3 1
Level
Arithmetic
operations
Allows you to freely choose numerical calculation results and the instrument performs
arithmetic operations of the results of your choice.
Settings: Calculation number 1 , Arithmetic operations ( + , − , × , ÷ ), Calculation number
2
Time difference
Calculates the time lag T (unit: s) between
when waveform A crossed the specified level
in the positive (or negative) direction and when
waveform B crossed it in the same direction.
(Time lag T) = (Time when waveform B crossed
the level) − (Time when waveform A crossed the
level)
(Time when waveform A crossed the level)
Settings: Waveform A (
Reference channel
,
Level , Slope , Filter ); Waveform B
(
Target channel
,
Level
,
Slope
,
Filter
)
T
A B
Level
Phase contrast
Calculates a phase difference (unit: degree)
with reference to waveform A based on a time
lag between the time when waveform A crossed
the specified level in the positive (or negative)
direction and the time when waveform B crossed
it in the same direction.
Phase difference = ×
360 [°]
Time lag between
waveforms A and B
Period of Waveform A
Settings: Waveform A ( Reference channel ,
Level , Slope , Filter ); Waveform B
( Target channel , Level , Slope , Filter )
High level
Low level
Calculates a low and high levels letting 0%
and 100% of acquired waveform data be them,
respectively, based on a histogram (frequency
distribution).
0%
100%
High
level
Low
level
Number of data points
Intermediate
value
Calculates the average of the maximum and
minimum values of waveform data.
[(Maximum value) + (Minimum value)] / 2
Maximum
Intermedi-
ate value
Minimum
Amplitude
Calculates a value (amplitude) between a low
and high levels letting 0% and 100% of acquired
waveform data be them, respectively, based on
a histogram (frequency distribution).
(High level) − (Low level)
0%
100%
High
level
Low
level
Number of data points
Amplitude
7
Numerical Calculation Function