Disk-storage devices are used with computers. The data head is moved to different positions on the spinning disk and rapid, accurate response is requi block diagram of a data-head positioning system is shown below. Desired position Head dynamics f(t) 5s+5a $²+5s+4 The closed-loop transfer function of the system H(s) 5(s+a) s²+5s+5a 5s+5a s²+10s+5a+4 Controller 5(s+a) (s+1) 5+a s²+10s+5a 1 (s+4) Data head position y(t) Y(s) F(s) is

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Disk-storage devices are used with computers. The data head is moved to different positions on the spinning disk and rapid, accurate response is required. A simplified
block diagram of a data-head positioning system is shown below.
Desired position
Head dynamics
f(t)
00
The closed-loop transfer function of the system H(s)
5(s+a)
s²+58 +5a
5s+5a
s²+5s+4
5s+5a
s²+10s+5a+4
Controller
5(s+a)
(s+1)
5+a
s²+10s+5a
1
(s+4)
=
Data head position
y(t)
Y(s)
F(s)
is
Transcribed Image Text:Disk-storage devices are used with computers. The data head is moved to different positions on the spinning disk and rapid, accurate response is required. A simplified block diagram of a data-head positioning system is shown below. Desired position Head dynamics f(t) 00 The closed-loop transfer function of the system H(s) 5(s+a) s²+58 +5a 5s+5a s²+5s+4 5s+5a s²+10s+5a+4 Controller 5(s+a) (s+1) 5+a s²+10s+5a 1 (s+4) = Data head position y(t) Y(s) F(s) is
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