Hioki LR8450, Инструкция по эксплуатации

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157
Performing Waveform Calculations
Unit Measure Channel Trigger Alarm Calculation System
7
Set the type of the waveform calculation.
Four arithmetic
 Performs between channels addition, subtraction, multiplication, and division.
This setting allows you to enter channels, coefficients, and constants.
(You can also set exponents as constants.)
Aggregation Adds the measurement data and plot its sum total.
Set the channel, [Reset start time] , and [Reset time] .
Simple average
Adds and average all measurement data from the start of measurement and plots the
results.
Set the channel,
[Reset start time]
, and
[Reset time]
.
Moving average Calculates the average using the specified number of points while moving.
Perform averaging processing using the specified number of points for each sampled
data point and plots the results.
Set the channel, and [Number of points] .
Integration
Adds values obtained by multiplying measurement data by the sampling period and
plot the sum total.
Set the channel,
[Reset start time]
, and
[Reset time]
.
8
(When [Four arithmetic] is selected)
Specify constants, target channels, and operators.
Calculation expression
(A
∗
CHa

B
∗
CHb

C
∗
CHc

D
∗
CHd)

E
A, B, C, D, E: User-specified constants
CHa, CHb, CHc, CHd: User-specified measurement channels (up to 4 channels)

: Any one operation sign of plus (+), minus (−), multiplication (
∗
), or division(/) or a blank character
If entering a blank character, you cannot enter any further terms in the parentheses

: Any one operation sign of plus (+), minus (−), multiplication (
∗
), division(/), or exponentiation (^)
or a blank character
If entering a blank character, you cannot enter a constant.
Example: To write an expression (A
∗
CH1)
2
, enter (A
∗
CH1)^2.
7 7
When you select a calculation sign,
its constants and channels will be
displayed.
When you select a calculation sign,
its constants will be displayed.
Example: [ (100
∗
U1-1) + (50
∗
U1-2) ] + [ 10 ]
You can select a calculation channel as a target channel; however, you cannot select a calculation
channel with a number that is larger than the number of the configured calculation channel.
Example: You can set [W1] through [ W4] as the calculation channel for [W5] .
6
Numerical and W
aveform Calculations