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PHYS6023 - Digital Instrumentation

Title:Digital Instrumentation
Long Title:Digital Instrumentation
Module Code:PHYS6023
Credits: 5
NFQ Level:Fundamental
Field of Study: Physics
Valid From: Semester 1 - 2009/10 ( September 2009 )
Module Delivered in no programmes
Module Coordinator: Donagh OMahony
Module Author: EAMONN BUTLER
Module Description: This course is intended to introduce the student to fundamental digital instrumentation and lay the foundations for further study and applications.The module includes extensive laboratory based practical work to support and apply the lecture material.Emphasis is also placed on developing the students ability to interpret and use manufacturer’s data sheets.
Learning Outcomes
On successful completion of this module the learner will be able to:
LO1 Interpret manufacturer’s data sheets of fundamental digital components.
LO2 Draw circuit diagrams and explain the operation of fundamental digital electronic circuits
LO3 Build and test simple digital circuits
LO4 Analyse the performance characteristics of digital components
Pre-requisite learning
Module Recommendations
This is prior learning (or a practical skill) that is strongly recommended before enrolment in this module. You may enrol in this module if you have not acquired the recommended learning but you will have considerable difficulty in passing (i.e. achieving the learning outcomes of) the module. While the prior learning is expressed as named CIT module(s) it also allows for learning (in another module or modules) which is equivalent to the learning specified in the named module(s).
No recommendations listed
Incompatible Modules
These are modules which have learning outcomes that are too similar to the learning outcomes of this module. You may not earn additional credit for the same learning and therefore you may not enrol in this module if you have successfully completed any modules in the incompatible list.
No incompatible modules listed
Co-requisite Modules
No Co-requisite modules listed

This is prior learning (or a practical skill) that is mandatory before enrolment in this module is allowed. You may not enrol on this module if you have not acquired the learning specified in this section.

No requirements listed
No Co Requisites listed

Module Content & Assessment

Indicative Content
Introductory concepts
analog vs. digital signals. Introduction to voltage levels. Number systems: Binary, Hex, Octal, converting between different systems. ASCI codes. Gray Code, parity bits. Application : Gray code and rotational shaft encoder.
Logic gates and truth tables
OR, AND, NOR, NAND, XOR, XNOR. Universality of NAND gates Boolean algebra: constructing logic circuits from Boolean expressions, Single-variable and multivariable theorems. Sequential logic: Flip-flops (R-S, J-K, D-type etc. synchronous and asynchronous operation)
Logic families:
TTL vs. CMOS: Performance Characteristics and Parameters.(propagation delay, fan out, noise margin, speed power product etc.) Current sourcing and sinking, Manufacturer’s data sheets.
Stepper motors:
Principal of operation, control signals. Specifications such as resolution, torque etc. Applications: Positioning devices
Signal Conditioning and Data
A/D conversion; types of converter, Conditioning circuitry; sample & hold devices, peak detectors. Unipolar and bipolar operation. Filtering and averaging, multiplexing, triggering. Characteristics of real converters; non-linearity, quantization error, missing codes, settling time etc. Application: Choice of resolution and sampling rate to suit various transducers.D/A conversion, digital I/O ports.
Power Supplies
Power supply specifications. Effect of power supply quality on transducer output. Rectifier circuits, ripple factor, regulation, capacitor smoothing. Linear voltage regulators, regulation factor, output impedance, current limiting and circuit overload protection techniques, Switching regulators.
Assessment Breakdown%
Course Work100.00%
Course Work
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Other 1 hour written exam 1,2,4 25.0 Week 7
Other 1 hour written exam 1,2,4 25.0 Sem End
Practical/Skills Evaluation Formal lab exam 3 25.0 Sem End
Other Lab Reports 1,3,4 25.0 Sem End
No End of Module Formal Examination
Reassessment Requirement
Repeat examination
Reassessment of this module will consist of a repeat examination. It is possible that there will also be a requirement to be reassessed in a coursework element.

The institute reserves the right to alter the nature and timings of assessment


Module Workload

Workload: Full Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture No Description 2.0 Every Week 2.00
Lab No Description 2.0 Every Week 2.00
Independent & Directed Learning (Non-contact) Lab reports / study of lecture material 3.0 Every Week 3.00
Total Hours 7.00
Total Weekly Learner Workload 7.00
Total Weekly Contact Hours 4.00
This module has no Part Time workload.

Module Resources

Supplementary Book Resources
  • Ronald J. Tocci, Neal S. Widmer, Gregory L. Moss 2007, Digital Systems: Principles and Applications, 10 Ed., Pearson [ISBN: ISBN-10: 0131725793 ISBN-13: 9780131725799]
  • Thomas L. Floyd 2006, Digital Fundamentals, 9 Ed., Pearson [ISBN: ISBN-10: 0131946099 ISBN-13: 9780131946095]
  • Roger L Tokheim 2002, Digital Electronics: Principles and Applications, 6 Ed., Glencoe [ISBN: 0-07-830981-6]
This module does not have any article/paper resources
This module does not have any other resources

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Email: help@cit.edu.ie