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PHYS6023 - Digital Instrumentation


Module Delivered in

Programme CodeProgrammeSemesterDelivery
CR_SCISY_8Bachelor of Science (Honours) in Computerised Instrument Systems4Mandatory
CR_SINEN_8Bachelor of Science (Hons) in Instrument Engineering3Mandatory
CR_SPHYS_7Bachelor of Science in Applied Physics and Instrumentation3Mandatory
CR_SPRCA_6Certificate in Process Control and Automation1Mandatory
CR_SPHYS_6Higher Certificate in Applied Physics and Instrumentation3Mandatory
CR_SIMCT_6Higher Certificate in Industrial Measurement and Control4Mandatory

Short Title:Digital Instrumentation
Full Title:Digital Instrumentation
Module Code:PHYS6023
NFQ Level:Fundamental
ECTS Credits:5.0
Module Coordinator:GUILLAUME HUYET
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
  1. Interpret manufacturer’s data sheets of fundamental digital components.
  2. Draw circuit diagrams and explain the operation of fundamental digital electronic circuits
  3. Build and test simple digital circuits
  4. 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
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

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 Work100.0%
End of Semester Formal Examination0%
Coursework Breakdown
TypeDescriptionOutcome addressed% of totalAssessment Date
Other1 hour written exam1,2,425.0Week 7
Other1 hour written exam1,2,425.0Sem End
Practical/Skills EvaluationFormal lab exam325.0Sem End
OtherLab Reports1,3,425.0Sem End
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 & Resources

TypeDescriptionHoursFrequencyAverage Weekly Learner Workload
LectureNo Description2.0Every Week2.00
LabNo Description2.0Every Week2.00
Independent & Directed Learning (Non-contact)Lab reports / study of lecture material3.0Every Week3.00
Total Weekly Learner Workload7.00
Total Weekly Contact Hours4.00
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]

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