MDO3000 Programmer Manual.pdf - 第474页
Commands Listed in A lphabetical Order Unit string Description "s" seconds "unk" unknown Examples MEASUREMENT:M EAS1:UNITS? might return :MEASUREMENT:MEA S1:UNIts % indicating units for measurement 1 …
Commands Listed in Alphabetical Order
Unit string Description
"VAR" volt-amperes resistive
"VV" volts squared
"VW" volt-watts
"VdB" volts-decibels
"Vs" volt-seconds
"W"
watts
"W/A"
watts per am
pere
"W/V"
watts per volt
"W/W"
watts per
watt
"W/dB"
watt per decibel
"W/s"
watts per second
"WA"
watt-am
peres
"WV" watt-volts
"WW" watts s
quared
"WdB" watt-decibels
"Wfms" waveforms
"Ws" watt-seconds
"dB" decib
els
"dB/
A"
decibels per ampere
"dB
/V"
decibels per volt
"dB
/W"
decibels per watt
"d
B/dB"
decibels per decibel
"dBA" decibel-amperes
"dBV" decibel-volts
"
dBW"
d
ecibel-watts
"dBdB" decibels squared
"day" days
"degrees" degrees
"div" divi sions
"edges" edges
"hits" hits
"hr" hours
"joules" joules
"min" minutes
"ohms" ohms
"percent"
percent
"pulses" pulses
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-443
Commands Listed in Alphabetical Order
Unit string Description
"s" seconds
"unk" unknown
Examples
MEASUREMENT:MEAS1:UNITS? might return :MEASUREMENT:MEAS1:UNIts %
indicating units for measurement 1 are set to percent.
MEASUrement:MEAS<x>:VALue? (Query Only)
Returns a calculate value for the measurement specified by <x>, which ranges
from 1 through 8 (only 4 in MDO3000 models).
NOTE. This is the same value as displayed on-screen. If measurement statistics
are enabled, a new value is calculated with every waveform. In addition, this
value is updated approximately every 1/3 second. If you are acquiring a long
acquisition record, the oscilloscope may take longer to update.
Group
Measurement
Syntax
MEASUrement:MEAS<x>:VALue?
Related Commands
MEASUrement:MEAS<x>:UNIts?,
*ESR?,
ALLEv?
Examples
MEASUREMENT:MEAS1:VALUE? might return : MEASUREMENT:MEAS1:VALue
2.8740E-06
. If the measurement has an error or warning associated with it,
then an item is added to the error queue. The error can be checked for with the
*ESR? and ALLEv? commands.
MEASUrement:METHod
This command specifies the method used to calculate the 0% and 100% reference
level.
Group
Measurement
2-444 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Syntax
MEASUrement:M
ETHod {Aut o|HIStogram|MINMax}
MEASUrement:METHod?
Related Commands
MEASUrement:REFLevel:PERCent:HIGH,
MEASUrement:REFLevel:PERCent:LOW,
MEASUrement:REFLevel:PERCent:MID<x>,
Arguments
Auto selects the best method for each data set.
HIStogram sets the high and low waveform levels statistically using a histogram
algorithm.
MINMax uses the highest and lowest values of the waveform record. This selection
is best for examining waveforms with no large, flat portions of a common value
,
such as sine waves and triangle waves.
Examples
MEASUREMENT:METHOD? might return :MEASUREMENT: METHOD MINMAX
indicating that the reference levels are set to MIN and MAX.
MEASUrement:REFLevel? (Query Only)
Returns the current reference level parameters.
Group
Measurement
Syntax
MEASUrement:REFLevel?
Examples
MEASUREMENT:REFLEVEL? might return these reference
level settings
:MEASUREMENT:REFLEVEL:METHOD
PERCENT;ABSOLUTE:HIGH 0.0000;LOW 0. 0000;MID1 0.0000 ;MID2
0.0000;:MEASUREMENT:REFLEVEL:PERCENT:HIGH 90.0000;LOW
10.0000;MID1 50.0000 ;MID2 50.0000
MEASUrement:REFLevel:ABSolute:HIGH
This command specifies the high reference level, and is the upper reference level
when MEASUrement:REFLevel:METHod is set to Absolute. This command
affects the results of rise and fall measurements.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-445