Acqiris SA240P - Page 28

2.2 Real-time averaging mode (AVG option)
28 Acqiris SA240P User's Manual
IVI.NET
Interface Method / Property name
Description
IAqMD3Acquisition
Mode
The acquisition mode.
IAqMD3Acquisition
NumberOfAverages
Specifies the number of waveforms
to average in the record. This attrib-
ute affects card behavior only when
the Acquisition Mode attribute is set
to Averager or PeakDetection.
IAqMD3ChannelAccumulationNSA
Configure
Configures the Noise Suppressed
Accumulation properties.
Enabled
Specifies whether the Noise Sup-
pressed Accumulation is active.
This attribute affects card behavior
only when the Acquisition Mode
attribute is set to Averager.
NoiseBase
Specifies the noise base value for
the Noise Suppressed Accu-
mulation. The noise base is sub-
tracted from data values which are
higher than the configured
threshold. The units are ADC
counts.
Threshold
Specifies the threshold of the Noise
Suppressed Accumulation. Each
data value must exceed the
threshold value to be entered into
the sum. The units are ADC counts.
IAqMD3ChannelMeasurement
FetchAccumulatedWaveformInt32
This function returns the accu-
mulated waveform which the ADC
card has acquired for the specified
channel. This waveform is from a
previously initiated accumulated
acquisition in Averager or Peak
Detection mode. Returned wave-
form data units are raw accu-
mulated ADC values which may be
converted to Volts by the formula: V
= ScaleFactor * data + ScaleOffset.
FetchAccumulatedWaveformReal64
This function returns the averaged
waveform which the ADC card has
acquired for the specified channel.
This waveform is from a previously
initiated accumulated acquisition in
Averager or Peak Detection mode.
Returned waveform data units are
Volts.