Hioki MR8740, Инструкция по эксплуатации

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10.3 Waveform Calculation Operators and Results
233
9
Chap
ter 10
W
avefo
rm Calculation
Functions
10
10.3 Waveform Calculation Operators and
Results
b
i
: ith member of calculation result data, d
i
: ith member of source channel data
Waveform Calculation Type Description
Four Arithmetic Opera-
tors ( +, -, *, / )
Executes the corresponding arithmetic operation.
Absolute Value (ABS) b
i
= | d
i
| ( i = 1, 2, .... n)
Exponent (EXP)
b
i
= exp(d
i
)
(
i
= 1, 2, .... n)
Common Logarithm
(LOG)
When d
i
> 0 , b
i
= log
10
d
i
When d
i
= 0 , b
i
= - (overflow value output)
When d
i
< 0 , b
i
= log
10
| d
i
| ( i = 1, 2, .... n)
Note: Use the following equation to convert to natural logarithm calculations.
LnX = log
e
X = log
10
X / log
10
e
1 / log
10
e
≈
2.30
Square Root (SQR)
When d
i
≥
0 , b
i
=
When d
i
< 0 , b
i
= - ( i = 1, 2, .... n)
Moving Average (MOV)
dt
: t
th
member of source channel data
k
: number of points to move (1 to 5000)
1 div = 100 points.
k is specified after a comma.
(Ex.) To make Z1 the moving average of 100 points: MOV(Z1,100)
Slides waveform data
along the time axis (SLI)
Moves along the time axis by the specified distance.
b
i
= d
i
−
k
(
i
= 1, 2, .... n)
k
: number of points to move (-5000 to 5000)
k is specified after a comma.
(Ex.) To slide Z1 by 100 points along the time axis: SLI(Z1,100)
Note: When sliding a waveform, if there is no data at the beginning or end of the calcula-
tion result, the voltage value becomes zero. 1 div = 100 points.
Sine (SIN)
b
i
= sin(d
i
)
(
i
= 1, 2, .... n)
Trigonometric functions employ radian (rad) units.
Cosine (COS)
b
i
= cos(d
i
)
(
i
= 1, 2, .... n)
Trigonometric functions employ radian (rad) units.
Tangent (TAN)
b
i
= tan(d
i
)
(
i
= 1, 2, .... n)
where -10
≤
b
i
≤
10
Trigonometric functions employ radian (rad) units.
Arcsine (ASIN)
When
d
i
> 1, b
i
=
π
/ 2
When
-1
≤
d
i
≤
1, b
i
= asin(d
i
)
When
d
i
< 1, b
i
=
-
π
/ 2
Trigonometric functions employ radian (rad) units.
8
d
i
d
i
bi
1
k
---
dt
t i k
2
--- – =
i
k
2
--- +
∑
=
( i = 1, 2, .... n)
When k is odd number:
bi
1
k
---
dt
t i k
2
--- – 1 + =
i
k
2
--- +
∑
=
( i = 1, 2, .... n)
When k is even number: