Galil DMC-1700 Manual De Usuario

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236 • Appendices 
DMC-1700/1800 
  Total 
 35708 
counts 
In general, the length of each linear segment is 
 
L
Xk
Yk
k
=
+
2
2
 
Where Xk and Yk are the changes in X and Y positions along the linear segment. The length of the circular arc is 
 
L
R
k
k
k
=
ΔΘ 2 360
π
 
The total travel distance is given by 
 
D
L
k
k
n
=
=
1
 
The velocity profile may be specified independently in terms of the vector velocity and acceleration. 
For example, the velocity profile corresponding to the path of Fig. 12.2 may be specified in terms of the vector 
speed and acceleration. 
 VS 
100000 
 VA 
2000000 
The resulting vector velocity is shown in Fig. A.14. 
0.05
0.357
10000
Velocity
time (s)
0.407
T
a
T
a
T
s
 
Figure A.14  - Vector Velocity Profile 
The acceleration time, Ta, is given by 
 
T
VS
VA
s
a
=
=
=
100000
2000000
0 05
.
 
The slew time, Ts, is given by 
 
 
The total motion time, Tt, is given by 
 
T
D
VS
T
s
t
a
=
+
= 0 407
.
 
T 
D 
VS 
T 
s
s
 
a
 
−  =
=
35708
100000
0 05 0 307
.
.