Acqiris SA230E, Руководство пользователя

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2.2 Real-time averaging mode (AVG option)
24 Acqiris SA230E User's Manual
It is possible to use the NSA on negative polarity pulse. By enabling the channel data inversion
capability, the signal will be inverted before applying the NSA settings. See
Data inversion (page
55) .
Parameters:
Enabled
: Specifies whether the noise suppressed accumulation is active. This attribute affects
module behavior only when the acquisition mode attribute is set to averager.
Threshold
: Specifies the threshold of the noise suppressed accumulation. Each data value must
exceed the threshold value to be entered into the sum. This parameter is defined as signed left-aligned
16-bit ADC code, and in the range of [-32768, +32767].
NoiseBase
: Specifies the noise base value for the noise suppressed accumulation. The noise base
is subtracted from data values which are higher than the configured threshold. This parameter is
defined as signed left-aligned 16-bit ADC code, and in the range of:
[Threshold - 32767, Threshold] if Threshold ≥ 0
[Threshold, Th32769] if Threshold < 0
The NSA basenoise must be equal or smaller than NSA threshold.
Self trigger mode
See Trigger output (page 65) .
Baseline stabilization and digital offset
See section Other Signal Processing Features (page 50) .
Multi-purpose inputs and outputs (IO 1, 2)
The multi-purpose inputs and outputs (IO 1, 2) in the front panel may be used to control the
accumulation or read the ADC module status:
Parameters (ControlIO interface)
In-AccumulationEnable
: ADC module input (IO 1). This signal controls the execution of the
averaging sequence. If a pulse occurs, then the next accumulation sequence will be executed.
Otherwise, no accumulation is performed and the module is waiting for either a pulse on IO 1 or a stop.
Out-AnalyzerArmed
: ADC module input (IO 3). Indicates that the acquisition is ongoing.