High Performance Oscilloscope Calibrator
9510/9530/9550/9560 Head Verification by Functions
61
Uncertainty Calculations and Flatness Check
All Tables
1.
Insert the User's Measurement Uncertainty (Um), for each of the verification
points in the tables.
2.
For each of the verification points: Combine the Total Measurement Uncertainty
and the 9500B Sine function accuracy, using the RSS method, to calculate the
Flatness Acceptance Limits. For further assistance, refer to Calculation of
Acceptance Limits.
3.
Enter the limits in the appropriate columns of the copy of the Table.
4.
Check that the Measured p-p Voltage is at or between the Flatness Acceptance
Limits.
Note
Please copy the following table. Enter the measurements in the Measured
Value column on the copy.
Table 12. Sine Flatness Verification at 3 V p-p into 50
Ω
Load
Verif
Point
Nominal
Output
Voltage
Output
Frequency
Measured
p-p Voltage
at 50 kHz
Specification
Relative to 50 kHz
User’s Total
Measurement
Uncertainty
Flatness
Acceptance Limits
Measured
p-p
Voltage for
Flatness
Check
(% of Output)
(Um) Lower
Higher
Ref 1
3 V
50 kHz
SF01 10
MHz
±2.0
SF02 50
MHz
±2.0
SF03 100
MHz
±2.0
SF04 250
MHz
±2.0
SF05 400
MHz
±2.5
SF06 550
MHz
±2.5
SF07 600
MHz
±3.5
SF08† 725
MHz
±3.5
SF09† 1
GHz
±3.5
SF10†† 1.5
GHz
±4.0
SF11††
2
GHz
±4.0
SF12†† 2.5
GHz
±4.0
Additional verification points for: 9500B/1100 and 9500B/3200 (†); and 9500B/3200 (††).
