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National Instruments Corporation
25
NI 5622 Calibration Procedure
12. Initiate a waveform acquisition using the niScope Initiate
Acquisition VI.
13. Acquire a waveform using the niScope Fetch (poly) VI. Select the
WDT instance of the VI. Use the default value for the
timestamp Type
parameter.
14. This step varies depending on the programming language used.
(LabVIEW)
Measure the V
pk-pk
of the sine wave being generated using the
LabVIEW Extract Single Tone Information VI. This value is the
Digitizer
Measured Sine Wave Reference Amplitude
(C/C++)
Perform an FFT on the array of data from step 13.
LabVIEW VI
C/C++ Function Call
Call
niScope_InitiateAcquisition
with the following parameter:
vi
: The instrument handle from
niScope_init
LabVIEW VI
C/C++ Function Call
Call
niScope_Fetch
with the following
parameters:
vi
: The instrument handle from
niScope_init
channelList
:
“0”
timeout
:
5.0
numSamples
:
–1
LabVIEW Block Diagram
Input Parameters
Set the following parameters:
advanced search»approx freq.
:
–1
advanced search»search
:
5
export signals
:
0
(none)