National Instruments PXIe-5164, Руководство пользователя

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• Sample rate: 1 GS/s
• Minimum number of points: 8,500,000 samples
• NI-SCOPE scalar measurement: Voltage Average
3. Configure the calibrator output impedance to match the impedance of the PXIe-5164.
4. Configure the calibrator to output the Test Point value from the DC Accuracy Verification
table.
5. Enable the calibrator output.
6. Wait one second for settling, then record the measured voltage.
7. Use the following formula to calculate the voltage error:
DC voltage error = V
measured
- Test Point
8. Compare the voltage error to the appropriate limit from the DC Accuracy Verification
table.
9. Repeat steps 2 through 8 for each configuration listed in the DC Accuracy Verification
table.
10. Disable the calibrator output.
11. Connect the calibrator test head to channel 1 of the PXIe-5164 and repeat steps 2 through
8 for each configuration listed in the DC Accuracy Verification table.
12. Disable the calibrator output.
Verifying AC Amplitude Accuracy
Follow this procedure to verify the AC amplitude accuracy of the PXIe-5164 by comparing the
voltage measured by the PXIe-5164 to the voltage measured by the DMM.
Refer to the following table as you complete the following steps:
Table 4. AC Amplitude Accuracy Verification
Config
Input
Impedance
(
Ω)
Vertical
Range
(V
pk-pk
)
Test
Point
(V
pk-pk
)
DMM
Range
(Vrms)
As-
Found
Limits
(dB)
As-Left
Limits
(dB)
Measurement
Uncertainty
(dB)
2
1 50 0.25 V 0.125 0.05 0.2 0.16 ±0.013
2 50 0.5 V 0.25 0.5 0.2 0.16 ±0.012
3 50 1 V 0.5 0.5 0.2 0.16 ±0.013
2
Measurement Uncertainty is based on the following equipment and conditions:
• NI PXI-4071 specifications apply after self-calibration is performed and in an ambient
temperature of 23 °C ± 5 °C.
• The cable from the BNC Tee to the DMM must be 1 meter or less.
• Pasternack BNC Tee PE9174.
PXIe-5164 Calibration Procedure | © National Instruments | 19