Beam angle and false echoes – VEGA VEGASON 51V…53V User Manual

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VEGASON 51 V … 53 V

0 m

7 m

50 %

1,2

0,4

100 %

5,5°

12°

4 m

Meas. distance

0 m

15 m

100 %

50 %

1,2

0,4

3°

8°

Meas. distance

Beam angle and false echoes

The ultrasonic impulses are focussed by the
transducer. The impulses leave the trans-
ducer in conical form similar to the beam
pattern of a spotlight. The beam angle is 5,5

(type 51/52) or 3

(type 53) at -3 dB emitted

power.

Any object in this beam angle causes a false
echo. Within the first few metres of the beam
angle, tubes, struts or other installations
cause strong false echoes. In a distance of
2 m the false echo of a strut has 9-times more
amplitude than at a distance of 6 m.

If possible, provide a vertical directing of the
sensor axis to the product surface and avoid
if possible, struts within the 100%-beam
angle, e.g. by tubes and struts.

Mounting and installation

General installation instructions

VEGASON 53

Emitted power

VEGASON 51/52