The behaviour of an Electronically Controlled Industrial System - Engineering Assignment Help

Assignment Task

Task 1
It is necessary to control the position of a pinion in a rack and pinion system as shown in figure 1 below.
The pinion is attached directly to the output shaft of a 12V 10W DC motor. The motor is controlled by a Microcontroller. The Microcontroller can signal to the motor to turn in either the clockwise or anti clockwise directions using a PWM signal. Your task is to
investigate a suitable transducer to be used as a feedback element for the Microcontroller to indicate the exact position of the Rack.
Design (outline schematic ) a suitable interface for the microcontroller drive signal(s)

Figure 1
Task 2 .A tracking radar similar to that shown in Figure 2 below requires a control system in order drive the radar direction whilst tracking a fast moving target. The mass of the moving radar dish and assembly is approximately 150kg. The dish will be required to slew in in both horizontal and vertical directions. A suitable means of driving the dish is required.
Specify the key requirements of the control system
Specify a suitable controller
Specify any transducers required.
Specify the means of driving the dish.
You should justify any choices made.

Task 3

A system in figure 3 is described by the following open loop transfer function.
Gs= (S+1)(S+3)(S)
Figure 3
You are presented with a range of transducers each with a specified transfer function as follows. Pick the ‘best’ and justify why.
Transducer a) (S+2) , Transducer b) (S-1), Transducer, c) 10(S+1)
LO2
Identify and specify the interface requirementsbetween electronic, electrical and mechanical
P3
Identify the interface requirements between electronic, electrical and mechanical transducersand controllers
P4
Justify the choice of transducers and
controllers for a given task
M2
Predict the behaviour of an electronically controlled industrial system by applying a variety of transducers to the solution of a givenproblem and choose a ‘best’ solution
 

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