DPO6000
，
MPO6000 Series Digital Phosphor Oscilloscope Instruction V1.1
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Example of waveform after 1024 average times:
3.5.4.High resolution
This mode uses a kind of ultra-sample technique to average the neighboring points of the
sample waveform to reduce the random noise on the input signal and generate much
smoother waveform on the screen. This is generally used when the sample rate of the
digital converter is higher than the storage rate of the acquisition memory.
In fact, the high-resolution mode is also a low-pass filtering mode, so the bandwidth of the
measured signal is limited, that is, the bandwidth of the measured signal is sacrificed to
improve the measurement accuracy, the number of significant digits increases as the
number of adjacent points used in the calculation increases, DPO6000/MPO6000 series
oscilloscope enhances to up to 12 bits.
In the high resolution mode, the oscilloscope always runs in the mode of the highest
sampling rate, and the enhancement digits change with the time base of the oscilloscope.
Note
: "Average" and "High Res" modes use different averaging methods. The former uses
"Multi-sample Average" and the latter uses "Single Sample Average".
3.6.Sample rate
The sample rate is the number of times an oscilloscope samples a signal in unit time(Sa/s),
the single-channel maximum real-time sample rate of DPO6000/MPO6000 series
oscilloscope is 1GSa/s. In addition, it will automatically switch according to the current
acquisition mode, memory depth and time base setting, and automatically calculate the
appropriate sampling rate without manual setting by users.
Function selection operation
Switch memory depth,press Utility
→
acquisition
→
memory depth on the frontal panel.
Select the horizontal timebase knob,rotate the horizontal timebase knob on the frontal
panel.
Change the acquisition mode, press Utility
→
acquisition
→
acquisition mode on the frontal
panel.
Note
: The sample rate of the current waveform is displayed in the status bar at the upper
side of the screen.
