Table 5. AC Amplitude Accuracy Verification
DMM Range
(V
RMS
)
Amplitude
Range (V
pk-pk
)
Expected
Amplitude
(V
pk-pk
)
As-Found Test
Limit (mV
pk-pk
)
As-Left Test
Limit (mV
pk-pk
)
1
5
7.34
7.34
±74.40
±32.66
2
2.27
2.27
±23.70
±10.10
3
2.18
2.18
±22.80
±9.70
4
2.1
2.1
±22.00
±9.35
5
2.02
2.02
±21.20
±8.99
6
1.94
1.94
±20.40
±8.63
7
1.85
1.85
±19.50
±8.23
8
1.77
1.77
±18.70
±7.88
9
1.68
1.68
±17.80
±7.48
10
0.5
0.69
0.69
±7.90
±3.07
11
0.21
0.21
±3.10
±1.50
12
0.065
0.065
±1.65
±0.81
1.
Connect one end of the SMA (m)-to-BNC (m) cable to CH 0 of the PXIe-5423. Connect
the other end to the double banana plug-to-BNC (f) adapter, and connect the double
banana plug-to-BNC (f) adapter to the HI and LO connectors of the DMM.
2.
Configure the DMM with the following settings:
•
Function
: AC Voltage
•
Resolution
: 6.5 digits
•
Aperture time
: 100 ms
•
Number of averages
: 4
•
Minimum frequency
: 49 kHz
•
Auto zero
: Enabled
•
ADC calibration
: Enabled
•
Vertical range
:
DMM range
AC Amplitude Accuracy Verification
3.
Configure the PXIe-5423 with the following settings:
•
Channel
: Channel of the PXIe-5423 connected to the DMM
•
Load impedance
: 1 MΩ
•
Output mode
: Standard Function
•
Waveform type
: Sine
•
Frequency
: 50 kHz
10
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PXIe-5423 Calibration Procedure
