Tokyo Keiki KRG-10, User Manual

Page: 177 / 200

10-6
Fig. 10.1.6 Antenna measuring distance of calm surface (reference)
Fig. 10.1.7 Antenna measuring distance of turbulent surface (reference)
a : Oil, Hydraulic carbon, Mainly petroleum industry (
ε
r
= 1.8 ~ 4.0)
b : Alcohol, Acid (
ε
r
= 4.0 ~ 10)
c : Water base liquid (
ε
r
> 10)
NOTE1: In generally, the liquid, which has higher dielectric constant number (=
ε
r
) such as water, is
easily to measure, and calm surface liquid is the same.
NOTE2: On the contrary, low dielectric constant liquid, turbulence surface or forming surface and dirty
antenna conditions are relatively difficult to measure.
NOTE3: In the case of measurement the liquid small dielectric constant number or turbulent surface,
that case recommend the use of still pipe.
2”Cone 4”Cone
0
10
20
0
10
20
0
10
20
0
10
20
a b c a b c a b c
(m)
1”Rod
a b c
30 30 30 30
4”PTFE
sealing
0
10
20
a b c
30
7m
8m
3m
2”PTFE
sealing
4”PTFE
sealing
0
10
20
0
10
20
0
10
20
0
10
20
a b c a b c a b c
(m)
a b c
30 30 30 30
0
10
20
a b c
30
1m 2m 3m
2.5m 6m
9m
8m
9m
2m
2”Cone
1”Rod
4”Cone
2”PTFE
sealing