Performance verification
AFG31000 Series Arbitrary Function Generator Specification and Performance Verification Technical Reference
41
2.
Calculate the 50 Ω calibration factor (CF) from the reading value and record it, as shown in the
following table.
50 Ω calibration factor
(Calibration factor (CF) = 2 / (1 + 50 Ω /
Measurement Ω) =)
Measurement (DMM reading)
CF
Ω
Examples
50.50
Ω
1.0050 (= 2 / (1 + 50 / 50.50))
49.62
Ω
0.9962 (= 2 / (1 + 50 / 49.62))
3.
Connect the AFG31000 Series to the DMM as shown in the following figure. Be sure to connect
the 50 Ω terminator to the Ch1 (or Ch2) output
connector on the AFG31000 Series.
Figure 7: Connections for the amplitude test
4. Set up the AFG31000 Series as shown in the following table.
Select menu
Setting
Operation
Function
Sine
Sine key (front panel)
Frequency
1.000000 kHz
Frequency/Period key (front panel)
Amplitude units
Vrms
Ch1 (or Ch2) menu > Amplitude/Level menu > Units > Vrms
(touch screen)
Ch1 (or Ch2)
Output
On
Ch1 (or Ch2) Output On key (front panel)
5. Verify that each amplitude measurement is within the range
specified for your AFG31000 Series
instrument in the following tables.
6. (Two-channel models only) Repeat steps 4 through 5 for channel 2 output.
Models AFG31021, AFG31022, AFG31051, AFG31052, AFG31101, and AFG31102
Function
Frequency
Amplitude
Measurement
Range
Sine
1.000 kHz
3.000 mV
rms
mV
rms
(3.000×CF±0.384) mVrms
Sine
1.000 kHz
30.000 mV
rms
mV
rms
(30.000×CF±0.654) mVrms
Sine
1.000 kHz
300.000 mV
rms
mV
rms
(300.000×CF±3.354) mVrms
Sine
1.000 kHz
800.000 mV
rms
mV
rms
(800.000×CF±8.354) mVrms
Sine
1.000 kHz
1.500 V
rms
V
rms
(1.500×CF±0.015) Vrms
Sine
1.000 kHz
2.000 V
rms
V
rms
(2.000×CF±0.020) Vrms
Sine
1.000 kHz
2.500 V
rms
V
rms
(2.500×CF±0.025) Vrms
Sine
1.000 kHz
3.500 V
rms
V
rms
(3.500×CF±0.035) Vrms