Development of a novel mechatronic system for mechanical weed ...

x [mm]
100
80
60
40
20
0
-20
-40
-60
-80
-100
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dp=50 mm
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z relative [mm]
Distance from the plant centre position [mm]
90
80
70
60
50
40
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20
10
0
Results and discussion
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z relative [mm]
Figure 5.30 Estimation of the hoeing quality attained during a series
of experiments with constant speed, limited to the 100
mm transversal area around the plant centre position: a)
distribution of the cuts under the soil surface transformed
to a relative distance from the plant centre position (�)
for duckfoot number 3 (�) and duckfoot number 1 (�);
b) mean distances of duckfoot number 3 (�) and
duckfoot number 1 (�) in relation to the plant centre
position (�)
Again, cuts have expressive trend around the plant centre position, keeping a
protected area with a diameter at least equal to dp= 50 mm. For duckfoot knife
3 cuts are ranged from 25 to 80 mm, while for duckfoot knife 1 they are ranged
between 40 and 85 mm. Distribution graphs of the cuts are given in Figure 5.31.
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