Module Delivered in
|Short Title:||Digital Instrumentation|
|Full Title:||Digital Instrumentation|
|Module Coordinator:||LIAM MC DONNELL|
|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.|
|On successful completion of this module the learner will be able to|
- Interpret manufacturer’s data sheets of fundamental digital components.
- Draw circuit diagrams and explain the operation of fundamental digital electronic circuits
- Build and test simple digital circuits
- Analyse the performance characteristics of digital components
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|
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|
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 listed|
Module Content & Assessment
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)
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.
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 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.
|End of Semester Formal Examination||0%|
|Type||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|
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 & Resources
|Type||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 Weekly Learner Workload||7.00|
|Total Weekly Contact Hours||4.00|
|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]