Combined Standard Uncertainty Uc(Y - Agilent Technologies E4416A Service Manual

Combined Standard Uncertainty uc(y):

There is no correlation associated with this measurement
Hence:
2
y ( )
uc
Table D- 3
from 3 μW (
Table D-3 Combined Standard Uncertainty
Power
μ
3.16 W 0.0097
μ μ
10 W 0.009
μ
31.6 W 0.0095
μ μ
100 W 0.035
μ μ
316 W 0.03
1 mW 0.00007 mW
3.16 mW 0.00022 mW
10 mW 0.00069 mW
31.6 mW 0.0022 mW
100 mW 0.0092 mW
E4416A/E4417A Power Meters Service Guide
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Measurement Uncertainty Analysis - Instrument Accuracy Test
2
∑
[ ⋅ ( ) ] ,
= C u TSE
TSE
shows the combined standard uncertainty at all the power levels
−
25 dBm) to 100 mW (20 dBm).
U(TSE) U(MV) (Converted)
μ μ
W 0.00946 W
μ
W 0.00946 W
μ μ
W 0.00946 W
μ
W 0.00946 W
μ
W 0.042 W
0.000042 mW
0.000389 mW
0.000389 mW
0.00095 mW
0.00095 mW
2
[ ⋅ ( ) ]
C u MV
MV
uc(y)
μ
0.0135 W
μ
0.0131 W
μ
0.0134 W
μ
0.0363 W
μ
0.0516 W
0.000082 mW
0.000447 mW
0.000792 mW
0.00239 mW
0.00924 mW
D
k uc(y)
k = 2
μ
0.0271 W
μ
0.0262 W
μ
0.0268 W
μ
0.0725 W
μ
0.1032 W
0.00016 mW
0.00089 mW
0.00158 mW
0.00479 mW
0.01850 mW
D-159