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|PEAKdetect|HIRes|AVErage|ENVe lope}
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.
2-114 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual