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CORK INSTITUTE OF TECHNOLOGY
INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ
Winter Examinations 2011/
Module Title: Mechatronics System Design
Module Code: MECH 8014
School: Mechanical and Process Engineering
Programme Titles: Bachelor of Engineering (Honours) in Mechanical Engineering Bachelor of Engineering (Honours) in Biomedical Engineering
Programme Codes: MECH_8_Y BIOM_8_Y
External Examiner(s): Mr J.J. Hayes, Prof. S. Leen, Mr G. Clerkin, Dr L. McNamara Internal Examiner(s): Dr Raurí McCool
Instructions: Answer ALL Questions
Total Marks for Q1, Q2, and Q3 are 40, 30 and 30, respectively.
Duration: 2 hours
Sitting: Winter 2011
Requirements for this examination:
Note to Candidates: Please check the Programme Title and the Module Title to ensure that you have received the correct examination paper. If in doubt please contact an Invigilator.
a) Define what is meant by “mechatronics”, and outline with the aid of a sketch the basic elements of a mechatronic system. [8 marks]
b) With the aid of a sketch, identify the elements of a basic closed loop system. [8 marks]
c) List the general steps involved in the design process for a mechatronic system. [6 marks]
d) List the considerations that must be taken into account in the selection of sensors for mechatronic systems. [6 marks]
e) Outline the fundamental difference between combinational logic devices and sequential logic devices. List three examples of sequential logic devices. [6 marks]
f) Describe using a sketch how an OP-AMP can be used as a comparator. [6 marks]
a) State the Boolean functions that can be used to describe the following situations: i. There is an output when switch A is closed and either switch B or switch C is closed. ii. There is an output when either switch A or switch B is closed and either switch C or switch D is closed. iii. There is an output when either switch A is opened or switch B is closed. iv. There is an output when switch A is opened and switch B is closed. [6 marks]
b) List the steps that could be used to facilitate the design of digital circuits.
[6 marks]
c) State De Morgan’s Laws and verify that the circuits shown in Figure Q3 c) are equivalent.
Figure Q3 c) [8 marks] d) Define what is meant by a Flip-Flop. Outline the basic operation and truth table for the type shown in Figure Q3 d). Highlight what happens when S=R=1.
Figure Q3 d) [10 marks]
