National Instruments PXIe-4610, Calibration Procedure

Page: 7 / 10

NI PXIe-4610 Calibration Procedure | © National Instruments Corporation | 7
6. Configure the DMM in digitizer mode as shown in Table 3.
7. Acquire samples using the DMM.
8. Calculate the amplitude of the acquired signal and record as Amplitude
OUT
. NI recommends
using the Extract Single Tone Information VI to calculate the amplitude.
9. Calculate the residual offset of the acquired signal and record as ResidualOffset .
NI recommends using the Extract Single Tone VI to export the residual signal. The residual
offset is the average of the residual signal.
10. Connect the DMM as shown in Figure 3.
Figure 3. DMM Connections
11. Repeat steps 7 and 8, and record the amplitude of the acquired waveform as Amplitude
IN
.
12. Perform the following calculation using the recorded Amplitude
OUT
from step 8 and
Amplitude
IN
values for step 11.
Table 3.
DMM Configuration for Gain and Residual Offset Verification
Configuration Value
Measurement Voltage
Range 10 V
Waveform Coupling DC
Acquisition Mode Waveform
Acquisition Rate 1.8 MS/s
Samples to Acquire 180,000
+
+
HI
LO
HI
LO
DMM
F u nction
Gener a tor NI PXIe-4610
–
–
OUT CH x
IN CH x
UnadjustedGain
Amplitude
OUT
Amplitude
IN
------------------------------------- =