HP 435B - Specified Uncertainties

O p er at i o n

M
o
d
e
l
435
Β
3-10
Co ndi t
i
o n s
: R
an ge - 1 m
W
M ete r R
ea
din g - 0 .7 m W
Se
n
so
r - 8481 Α
Fr e qu ency - 1 G Hz
C AL F AC T O R - 99 .5% ο
( F
S)
In str um
e
n
tat
i o n
Un
certa in t y = ±1 .0% ο

= ±0 .01 m W

= ±0 .06 dB
(R)

P owe r
R e
f
e
r e n ce
Un
certa in t y = ±0 .7%
ο

= ±0
.0049 m W

= ±0 .03 dB
(R)

CA
L FA CT
O
R Sw i tc h R eso lu ti o n
Un
certa in t y = ±0 .5% ο

= ±0 .0035 m W

= ±0 .02 dB
(R)

Z ero Set Un certa in t y = ±0 .002% ο

= ±0 .000015 m W = ±0 .00009 dB
( F S) Z ero Carr yov er Un certa in t y = ±0 .5% ο

= ±0 .005 m W

= ±0 .03 dB
(R)

N o i se

= ±0 .006% ο

= ±0 .00004 m W

= ±0 .00025 dB
(R)

D r i ft

= ±0 .002% ο

= ±0 .000015 m W = ±0 .00009 dB
(R)

Ca l F acto r Un certa in t y = ±2 .70% ο

= ±0 .019 m W

= ±0 .12 dB
T ota l S p ec i fie d Un certa in ti es = ±0 .0425 m W =
0 .0 0 425
(100) = ±6 .07%
ΝΟΤΕ : F S = % ο o f full sca l e
R

=% ο ofrea din g
S PE CI F I E D UNC
ER TAI N TY
CA
L
C
UL ATIO N
= 1 0 l og
0'7425
=
+0 .26 dB
0 .7
F igure 3-5 . S p ecifie d U ncertai n ties
±0 .0425 m W