National Instruments NI 9234, Процедура калибровки, Страница: 9 / 17

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NI 9234 Calibration Procedure
Phase Matching Verification
Complete the following procedure to determine the As-Found status of the NI 9234.
1. Connect the NI 9234 to the function generator as shown in Figure 3.
Figure 3. Phase Matching Verification Connections to the NI 9234
2. Configure function generator according to Table 7.
3. Set the function generator frequency to a value indicated in Table 10.
4. Acquire and average samples.
a. Create an AI voltage task on the NI 9234 according to Table 8.
Note Wait 20 s for the AC coupling filter on the NI 9234 to settle.
b. Configure the AI voltage task timing according to Table 9.
c. Enable the function generator.
d. Start the task.
Table 7. Function Generator Configuration for Phase Matching Verification
Signal Type Amplitude (V
pk
)
Sinewave ±4.5
Table 8.
NI 9234 Configuration for Phase Matching Verification
Min (V) Max (V) Scaled Units Channel Configuration
-5 5 Volts AC Coupled
Table 9. NI 9234 Timing Configuration
Sample Mode Samples Per Channel Rate (kHz)
Finite Samples 16384 51.2
NI 92 3 4
F u nction
Gener a tor
HI
AI0
AI1
AI2
AI 3
+
–
+
–
+
–
+
–
LO