Vaisala RS41, Руководство пользователя

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Chapter 3 _________________________________________________________ Ozone Calculation
VAISALA_______________________________________________________________________ 89
where:
The partial pressure of ozone (P
3
) is:
R = 8.31451 JK
-1
mol
-1
(Molar gas constant)
Finally:
where
C =
ozone concentration in mmol 1
-1
F =
9.6485
×
10
4
C (mol)
-1
(Faraday constant)
I = measured current in
µ
A
t = pumping time for 100 ml of air (seconds)
P
3
= partial pressure of ozone in mPa
I = measured ozone current in
µ
A
I
BG
= current caused by oxidants other than ozone (mainly O
2
) in
µ
A (I
BG
equals to I
B2
).
Tp = measured airflow temperature in K from pump base.
t = pumping time for 100 ml of air in seconds
C
ef
= correction due to reduced ambient pressure for pump
C
ref
= additional correction factor
NOTE
I
BG
used in this manual is equal to I
0
used in the Vaisala scripts, and
I
B2
used in the GAW report 201, and the ASOPOS panel
recommendations.
P
3
C R T
air
˜ ˜
R
F 2 100 ml
˜ ˜
-------------------------------
I T
air
t
˜ ˜
= =
P
3
4.3087 10
4
–
I I
BG
–
T
p
t C
ef
C
ref
˜ ˜ ˜ ˜ ˜
=