HP 435B - Calculating M; Eas Ureme Nt un Certa Inties

O p
er at i o n

M ode l
435 Β
3- 1 2
CA L C UL
ATI N G ME AS UREMEN
T
UN C
ER TAI N TY
3 .

Ca l c ul ate
t
h e M
eas ur e m e n t Un ce r tain t y
in
dB
.
MU = 10
[1 ο g10
( ρ '-) Ι
dB
ο
0 .871
MU,

= 10
1
l og
(1 .138)]
1

and

10 [ l og (

1

) ]
= 10
[0 .056
1

and

10 [-0 .060 1
= +0 .56 dB

and

-0 .60 dB
MU, =
10 [ l og
(1-075)]
1

and

10 [ l og
( 0 .127)]
1
= 10 [0 .031]

a nd

10 [-0
.033
1
= +0 .31 dB

and

-0 .33 dB
F igure 3-6 . Calculating M easurement
Uncertainties (2 of 2)