MDO3000 Programmer Manual.pdf - 第454页
Commands Listed in A lphabetical Order Examples MEASUREMENT:I MMED:DELAY:EDGE1 RISE specifies that the "from" waveform rising edge be used for the immediate delay mea surement. MEASUREMENT: IMMED:DELAY:E DGE1? r…
Commands Listed in Alphabetical Order
Group
Measurement
Syntax
MEASUrement:IMMed:DELay:DIRection {BACKWards|FORWards}
MEASUrement:IMMed:DELay:DIRection?
Related Commands
MEASUrement:IMMed:SOUrce<x>
Arguments
BACKWards starts the search at the end of the waveform and looks for the last
rising or falling edge in the waveform.
FORWards starts the search at the beginning of the waveform and looks for the
first rising or falling edge in the waveform.
Examples
MEASUREMENT:IMMED:DELAY:DIRECTION FORWARDS starts searching from the
beginning of the waveform record and looks for the first rising or falling edge.
MEASUREMENT:IMMED:DELAY:DIRECTION? might return
:MEASUREMENT:IMMED:DELAY:DIRECTION BACKWARDS indicating
that searching begins at the end of the waveform record and looks for the last
rising or falling edge.
MEASUrement:IMMed:DELay:EDGE<x>
This command specifies the slope of the edge the oscilloscope uses for the delay
"from" or "to" waveform when taking an immediate delay measurement.
Group
Measurement
Syntax
MEASUrement:IMMed:DELay:EDGE<x> {FALL|RISe}
MEASUrement:IMMed:DELay:EDGE<x>?
Related Commands
MEASUrement:IMMed:SOUrce<x>
Arguments
<x> specifies which waveform to use, where <x> = 1 is the "from" waveform, and
<x> = 2 is the "to" waveform.
FALL specifies the falling edge.
RISe specifies the rising edge.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-423
Commands Listed in Alphabetical Order
Examples
MEASUREMENT:I
MMED:DELAY:EDGE1 RISE
specifies that the "from" waveform
rising edge be used for the immediate delay measurement.
MEASUREMENT:
IMMED:DELAY:EDGE1?
returns either RISE or FALL.
MEASUrement:IMMed:SOUrce<x>
For SOURce1: This command specifies the source for all single channel
measurements. For delay or phase measurements, this command specifies the
waveform to measure "from". This is equivalent to setting the "From:" waveform
in the "Measure Delay" side menu or the "Measure Phase" side menu. SOUrce is
equivale
nt to SOURCE1.
For SOUrce2: This command specifies the waveform to measure "to" when taking
adelaym
easurement or phase measurement. This is equivalent to setting the "To:"
waveform in the "Measure Delay" side menu or the "Measure Phase" side menu.
NOTE. If you do not specify a numerical suffix,thesourceisassumedtobe
SOUrce1.
Group
Measurement
Syntax
MEASUrement:IMMed:SOUrce<x>
{CH1|CH2|CH3|CH4|MATH|D0|D1|D2|D3|D4|D5|D6|D7|D8|D9|D10
|D11|D12|D13|D14|D15|HIStogram|RF_AMPlitude|RF_FREQuency|RF_ PHASe}
MEASUrement:IMMed:SOUrce<x>?
Arguments
CH1–CH4 is the analog channel to use as the source waveform.
MATH is the math waveform.
D0 — D15 is the digital waveform to use as the source waveform.
(MSO/MDO4000/B models only as well as MDO3000 and MDO400C models
with option MDO3MSO or MDO4MSO installed.)
HIStogram indicates the histogram as the object to be measured. HIStogram only
applies to SOUrce1; it is not available for SOUrce2.
RF_AMPlitude|RF_FREQuency|RF_PHASe are the RF time domain traces.
(MDO4000/B/C only.)
MEASUrement:IMMed:TYPe
This command specifies the immediate measurement type.
2-424 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Digital channe
l measurements do not have a user-settable midRef threshold. If you
specify a digital channel measurement that is not available on MSO/MDO4000/B
models (or MDO3000 and MDO4000C models with the MDO3MSO or
MDO4MSO option installed), measurement error 2200: measurement system
error occurs and 9.91e37 (not a number) is returned.
Conditions
The TOVershoot (total overshoot) measurement is supported on MDO3000,
MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
Measurement
Syntax
MEASUrement:IMMed:TYPe
{AMPlitude|AREa|BURst|CARea|CMEan|CRMs|DELay|FALL|FREQuency
|HIGH|HITS|LOW|MAXimum|MEAN|MEDian|MINImum|NDUty|NEDGECount
|NOVershoot|NPULSECount|NWIdth|PEAKHits|PEDGECount|PDUty
|PERIod|PHAse|PK2Pk|POVershoot|PPULSECount|PWIdth|RISe|RMS
|SIGMA1|SIGMA2|SIGMA3|STDdev|TOVershoot|WAVEFORMS}
MEASUrement:IMMed:TYPe?
Arguments
AMPlitude measures the amplitude of the selected waveform. In other words, it
measures the high value less the low value measured over the entire waveformor
gated region. This measurement is applicable only to the analog channels.
Amplitude = High - Low
AREa measures the voltage over time. The area is over the entire waveform or
gated region and is measured in volt-seconds. The area measured above the
ground is positive, while the area below ground is negative. This measurement is
applicable only to the analog channels.
BURst measures the duration of a burst. The measurement is made over the entire
waveform or gated region.
CARea (cycle area) measures the voltage over time. In other words, it measures, in
volt-seconds, the area over the first cycle in the waveform or the first cycle in the
gated region. The area measured above the common reference point is positive,
while the area below the common reference point is negative. This measurement
is applicable only to the analog channels.
CMEan (cycle mean) measures the arithmetic mean over the first cycle in the
waveform or the first cycle in the gated region. This measurement is applicable
only to the analog channels.
CRMs (cycle rms) measures the true Root Mean Square voltage over the first
cycle in the waveform or the first cycle in the gated region. This measurementis
applicable only to the analog channels.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-425