4.4 Thresholding (Zero-Suppress - ZS1 option)
50 Acqiris SA220P User's Manual
4.4 Thresholding (Zero-Suppress - ZS1 option)
This feature is available on units ordered with firmware option ZS1
1
.
Principle
The zero-suppress is a data reduction mode allowing to select data above a user-defined threshold,
as depicted in figure below.
The threshold allows to identify the signal of interest.
Figure 4.3 - Zero-Suppress compression concept.
This feature allows data compression: signal data below the user selected threshold are suppressed
and only the data above the threshold are stored and transferred to host computer.
It can be used in digitizer operating mode and combined with simultaneous acquisition and readout
(CST).
When used with the digitizer mode (DGT) only, the driver reconstructs the waveform in time
and returns it to the user. The value used to replace the suppressed values for waveform
reconstruction can be selected.
When the zero-suppress is combined with the streaming feature (CST): only the waveform
sections selected by user defined threshold criteria are transferred to the host computer.
The zero-suppress allows a larger time window to be captured, assuming a regular occurrence of
the trigger condition which periodically segments the continuous data acquisition.
The threshold can have a positive or negative value.
1
This capability is currently not supported for the SA220P-LSR. Please contact factory in case of need
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