MRG
MRG
MRG
MRG----10
10
10
10
Mechanical Installation
Mechanical Installation
Mechanical Installation
Mechanical Installation
2-10
2.6 Installation Hints
Obstacles in the radar beam may generate signal reflections (false echoes) which may be larger than the
reflected signals from the surface of the liquid. The MRG-10 may erroneously interpret such false echoes
as reflections from the liquid surface. To reduce the influence of false echoes, attenuate such signals
using the following methods.
1. Thin pipe or ladder
Microwave reflections from elongated metal objects
such as thin pipes or ladders rungs are largest when
the axis of such objects are in parallel with the
electric field. The orientation of the electric field
generated by the MRG-10 is as shown in the right
figure.
Mount the MRG-10 so that the electric field is not in
parallel with the axis of the obstacle which reduces
the affect of the false echo emitted by it.
Ladder rungs Ladder rungs
Pipe
Pipe
E
E
E
E
A-plane
A-plane
Top view
Pipe
Pipe
E
E
E
E
A-plane
A-plane
Top view
Correct
Wrong
Ladder
E
E
E
E
A-plane
A-plane
Top view
E
E
E
E
A-plane
A-plane
Top view
Correct
Wrong
Ladder
Ladder
Ladder
Cone Antenna
Front Cover
E
E
E
E
