Hioki Memory HiCorder MR6000, Instruction Manual, Page: 202 / 392

196
Configuring the Waveform Calculation Settings
Arithmetic expression entry
• The length of each arithmetic expression is limited to 80 characters.
• You can directly enter a 30-digit numbers or less in arithmetic expressions (for constants, 5-digit
number or less ).
• If an expression you enter includes an error (its frame is filled with red), all calculation results
become zero.
• Entering a complex, long arithmetic expression causes a red frame to enclose the entry box.
Divide an expression into two or more.
ABS(CH(1,1)) + CH(1,2)
× CH(1,3) − (CH(2,1) + CH(2,2)) × ABS(CH(2,1))/DIF(CH(1,1),1)
1 2 3
• You can use calculation result Zi in other arithmetic expressions. However, expression Zn can
include only result Zn-1 or earlier.
Example: Expression Z4 can include result Z1 through Z3.
When an expression includes any one of the following operators: MOV , SLI , DIF , DIF2 ,
PLEVEL , ATAN2 , and AVEEXP .
The operators above require a comma and second parameter to follow the first parameter, which is
enclosed in parentheses.
Operator Setting Setting example
MOV (moving average)
SLI (parallel move)
Specify the number of points to be
moved.
Setting range
MOV (moving average): 1 to 5000
SLI : −5000 to 5000
If you omit the second parameter,
the instrument specifies [1] to
perform calculations.
To calculate a 10-point moving
average of the CH1-1 waveform
MOV(CH(1,1),10)
DIF (Differential)
DIF2 (2nd-order differential)
Specify a sampling interval for
differentials Usually specify “1.”
To acquire amplitudes of a slowly
fluctuating waveform, specify a
greater number.
Setting range
DIF , DIF2 : 1 to 5000
If you omit the second parameter,
the instrument specifies [1] to
perform calculations.
To differentiate the CH1-2
waveform every 20 sampling
points
DIF(CH(1,2),20)
PLEVEL (level at time) Specify a period of time from a
trigger in second.
If you omit the second parameter,
the instrument specifies [0] to
perform calculations.
To obtain a level 1 ms after a
trigger yielded from CH1-3
PLEVEL(CH(1,3),0.001)
ATAN2 (2-argument arc tangent) Entering “ ATAN2(y,x) ” allows the
instrument to solve TAN(y/x) .
(p. 203)
If you omit parameter x, the
instrument specifies 1.0 to perform
calculations. For parameter x, you
cannot specify any functions or
expressions, but CH, W, or Z.
To calculate 2-argument arc
tangent of (CH1-1) / (CH1-2)
ATAN2(CH(1,1),CH(1,2))
AVEEXP (exponential average) Specify an attenuation constant for
an exponential average calculation.
Setting range: 2 to 1000
Omitting an attenuation constant
causes an error.
To calculate an exponential
average of the CH1-4 waveform
using an attenuation constant of
40
AVEEXP(CH(1,4),40)
HIOKI MR6000A966-03