Calculation Group - YOKOGAWA TA220 User Manual

10.2 Commands
10.2.2

CALCulation Group

This group consists of statistical computation related commands.
:CALCulation
:CALCulation:AVERage?
Function Queries the average value.
Syntax :CALCulation:AVERage?
Example :CALCULATION:AVERAGE?
-> :CALCULATION:AVERAGE 1.00035E-7
Description If the statistical value is not valid, "NAN" is
returned in response to a query.
:CALCulation:CONStt?
Function Queries the time width T.
Syntax :CALCulation:CONStt?
Example :CALCULATION:CONSTT?
-> 100.000E-9
Description For the D-to-C function, returns the value of the
measured clock. For the PulseWidth function,
returns the difference between right and left
markers.
:CALCulation:DEViation?
Function Queries the deviation.
Syntax :CALCulation:DEViation?
Example :CALCULATION:DEVIATION?
-> 1.4425E+1
Description • If the statistical value is not valid, or if
INPut:HISPeed:STATe (D-to-C high speed
calculation) is ON, "NAN" is returned in
response to a query.
• DEVIATION = AVERAGE - X
• X is determined as follows:
CENTER
For D-to-C jitter measurement,
X = T / 2
CENTER
For pulse width jitter measurement,
X = (RightMarker + LeftMarker) / 2
CENTER
10-12
;
: ?
AVERage
?
CONStt
?
DEViation
?
DEVT
?
FLUTter
?
JITTer
?
LEVel
?
MAXimum
?
MINimum
?
PTOPeak
?
SDEViation
?
SNUMber
CENTER
:CALCulation:DEVT?
Function Queries the deviation/T value.
Syntax :CALCulation:DEVT?
Example :CALCULATION:DEVT?
-> 9.99437E-8
Description • If the statistical value is not valid, or if
INPut:HISPeed:STATe (D-to-C high speed
calculation) is ON, "NAN" is returned in
response to a query.
• DEVT = DEVIATION / CONSTT × 100 %
:CALCulation:FLUTter?
Function Queries the σ/AVE value (flutter).
Syntax :CALCulation:FLUTter?
Example :CALCULATION:FLUTTER?
-> 1.2887E+1
Description • If the statistical value is not valid, or if
INPut:HISPeed:STATe (D-to-C high speed
calculation) is ON, "NAN" is returned in
response to a query.
• FLUTTER = SDEVIATION / AVERAGE × 100
%
:CALCulation:JITTer?
Function Queries the σ/T (jitter ratio) value.
Syntax :CALCulation:JITTer?
Example :CALCULATION:JITTER?
-> 1.2366E+1
Description If the statistical value is not valid, "NAN" is
returned in response to a query.
:CALCulation:LEVel?
Function Queries the level value.
Syntax :CALCULATION:LEVel?
Example :CALCULATION:LEVEL?
-> 1.236+0
Description If the statistical value is not valid, "NAN" is
returned in response to a query.
IM 704610-01E