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

Results and discussion
cuts are ranged from 16 to 70 mm, while the cuts done by duckfoot knife 1 were
ranged between 40 and 105 mm with normal distribution.
x [mm]
-100
-60 -40 -20 0 20 40 60 80 100
z relative [mm]
112
100
80
60
40
20
0
-20
-40
-60
-80
+
dp=32 mm
Distance from the plant centre position [mm]
100
90
80
70
60
50
40
30
20
10
0
+
-100 -80 -60 -40 -20 0 20 40 60 80 100
z relative [mm]
Figure 5.33 Estimation of the hoeing quality attained after the
experiment with acceleration and deceleration of the
forward 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 (�)
For duckfoot knife 3, around 97 % of the cuts were normally distributed inside
the area distanced from the plant centre position between 15 and 60 mm, while
around 90 % of the cuts done by duckfoot knife 1 were ranged between 50 and
90 mm with normal distribution as shown in Figure 5.34.