Appendix
57
9
Appendix
9.1
Saturation Vapour Pressure as a Function of the Temperature
To estimate the condensation temperature T
k
, you need:
- T
u
ambient temperature,
- T
c
internal temperature of the laser marking device = 20 °C = const,
-
ϕ
air humidity.
t [°C]
p´
d
[mbar]
t [°C]
p´
d
[mbar]
15
17.04
26
33.60
16
18.17
27
35.64
17
19.36
28
37.79
18
20.63
29
40.04
19
21.96
30
42.42
20
23.37
31
44.91
21
24.86
32
47.54
22
26.42
33
50.29
23
28.08
34
53.18
24
29.82
35
56.22
25
31.66
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