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Phase Matching Verification
Complete the following procedure to determine the As-Found status of the NI 9225.
1.
Connect the NI 9225 to the function generator as shown in Figure 3.
Figure 3. Phase Matching Verification Connections
2.
Configure function generator according to Table 8.
Table 8. Function Generator Configuration for Phase Matching Verification
Signal Type
Sinewave
3.
Set the function generator frequency to a value indicated in Table 11.
4.
Enable the function generator.
5.
Acquire samples.
a.
Create and configure an AI voltage task according to Table 9.
Table 9. NI 9225 Voltage Task Configuration for Phase Matching Verification
Physical Channels
AI0:2
b.
Configure the task timing according to Table 10.
Table 10. NI 9225 Voltage Task Timing Configuration for Phase Matching Verification
Sample Mode
Finite Samples
c.
Start the task.
d.
Read samples from the NI 9225.
e.
Clear the task.
8 | ni.com | NI 9225 Calibration Procedure
HI
LO
Function
Generator
Samples Per Channel
+
AI0
–
+
AI1
–
+
AI2
–
NI 9225
Amplitude (V
Terminal Configuration
Differential
25000
)
pk
9
Rate (kS/s)
50
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