MDO3000 Programmer Manual.pdf - 第143页
Commands Listed in Alphabetical Order Arguments 1 or ON turns on f ast acquisition mode. 0 or OFF turns it off. Examples ACQ:FASTA:STA TE ON turns on fast acquisition mode. ACQuire:MAGnivu T urns on the MagniV u feature,…
Commands Listed in Alphabetical Order
ACQuire:FAST
Acq:PALEtte
Sets (or queries) which palette to use for fast acquisition mode.
Group
Acquisition
Syntax
ACQuire:FASTAcq:PALEtte
{NORMal|TEMPErature|SPECTral|INVERTed}
ACQuire:FASTAcq:PALEtte?
Arguments
NORMal – Normal displays hues and lightness levels for best overall viewing.
The color of each channel waveform matches the color of the corresponding
front-panel vertical knob.
TEMPErature - Temperature Grading displays areas of the waveform with the
highest sample density in red shades. The areas of lowest sample density appear
in blue shades.
SPECTra – Spectral Grading displays areas of the waveform with the highest
sample density in blue shades. The areas of lowest sample density appear in
red shades.
INVERTed – Inverts the normal display hues and lightness levels based on sample
intensity. The areas of lowest sample density appear the brightest, while the areas
with the highest sample density appear the darkest.
Examples
ACQ:FASTA:PALETTE SPECT sets the palette for fast acquisition mode to
Spectral.
ACQuire:FASTAcq:STATE
Turns fast acquisition mode on or off, or queries the state of the mode.
NOTE. When fast acquisition mode is on, waveforms cannot be queried, saved or
recalled, and reference waveforms cannot be turned on. Attempting any of these
results in a settings conflict error event.
Group
Acquisition
Syntax
ACQuire:FASTAcq:STATE {0|1|OFF|ON}
ACQuire:FASTAcq:STATE?
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Commands Listed in Alphabetical Order
Arguments
1 or ON turns on f
ast acquisition mode.
0 or OFF turns it off.
Examples
ACQ:FASTA:STATE ON turns on fast acquisition mode.
ACQuire:MAGnivu
Turns on the MagniVu feature, which provides up to 32 times signal detail forfast
viewing of short events. This feature is not recommended for slow data formats
such as RS-232.
NOTE. MagniVu channel sampling is available on MSO/MDO4000/B
oscilloscopes only as well as MDO3000 and MDO4000C models with option
MDO3MSO or MDO4MSO installed.
Group
Acquisition
Syntax
ACQuire:MAGnivu {<NR1>|OFF|ON}
ACQuire:MAGnivu?
Arguments
<NR1> = 0 disables the MagniVu feature; any other value turns this feature on.
ON enables the MagniVu feature.
OFF disables the MagniVu feature.
ACQuire:MAXSamplerate? (Query Only)
Returns the maximum real-time sample rate, which varies from model to model.
Group
Acquisition
Syntax
ACQuire:MAXSamplerate?
Examples
ACQUIRE:MAXSAMPLERATE? might return 2.5000E+9 indicating the maximum
real-timesamplerateis2.5GS/s.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-113
Commands Listed in Alphabetical Order
ACQuire:MODe
Specifies the acquisition mode of the oscilloscope for all analog channel
waveforms. The acquisition mode determines how the final value of the
acquisition
interval is generated from the many data samples.
Waveforms are the displayed data point values taken from acquisition intervals.
Each acquis
ition interval represents a time duration set by the horizontal scale
(time per division). The oscilloscope sampling system always samples at the
maximum rate, so the acquisition interval may include more than one sample.
Group
Acquisition
Syntax
ACQuire:MODe {SAMple|P EAKdetect|HIRes|AVErage|ENVelope}
ACQuire:MODe?
Related Commands
ACQuire:NUMAVg, ACQuire:NUMEnv
CURVe
Arguments
SAMple specifies that the displayed data point value is the first sampled value
that is taken during the acquisition interval. In sample mode, all waveformdata
has 8 bits of precision. You can request 16 bit data with a CURVe query but the
lower-order 8 bits of data will be zero. SAMple is the default mode.
PEAKdetect specifies the display of high-low range of the samples taken from a
single waveform acquisition. The high-low range is displayed as a vertical column
that extends from the highest to the lowest value sampled during the acquisition
interval. PEAKdetect mode can reveal the presence of aliasing or narrow spikes.
HIRes specifies Hi Res mode where the displayed data point value is the
average of all the samples taken during the acquisition interval. This is a form
of averaging, where the average comes from a single waveform acquisition. The
number of samples taken during the acquisition interval determines the number of
data values that compose the average.
AVErage specifies averaging mode, in which the resulting waveform shows an
average of SAMple data points from several separate waveform acquisitions. The
oscilloscope processes the number of waveforms you specify into the acquired
waveform, creating a running exponential average of the input signal. The number
of waveform acquisitions that go into making up the average waveform is set or
queried using the
ACQuire:NUMAVg command.
ENVelope specifies envelope mode, where the resulting waveform shows the
PEAKdetect range of data points from every waveform acquisition.
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