MEASUREMENT THEORY AND DEVICES

SHE Level 5
SCQF Credit Points 15.00
ECTS Credit Points 7.50
Module Code MMH120618
Module Leader Sheila Smith
School School of Computing, Engineering and Built Environment
Subject Instrumentation and Control
Trimesters
  • A (September start)
  • B (January start)
  • C (May start)

Summary of Content

The generalised approach to measurement theory and devices adopted in this module will allow the stduents to become familiar with the characteristics of measurement systems in terms of the underlying principles. In this way, the students will be able to develop a systems approach to problem solving. They should find this methodology to be a considerable benefit to them when they have to apply their expertise to solving more complex industrial measurement problems.

Syllabus

1. Generalised Measurement Systems Generalised approach to measurement systems; static (sensitivity, range, resolution etc) and dynamic characteristics, modifying effects, interfering effects, non-linearity, ageing and humidity effects, generalised model of a system element. 2. Types of transducer and range of measurands Physical measurands will be dealt with including force, position, velocity, rotation, acceleration, temperature, pressure, flow. 3. Measurement System Performance Calibration, evaluation of uncertainty, traceability and quality assurance (Current ISO Standards). 4. Error reduction techniques Environmental linearisation, high gain negative feedback. 5. Signals and noise Random, thermal and shot noise; Improvements to signal-to-noise ratios: Signal averaging, filtering, phase sensitive detection and interference reduction. The syllabus consists of a list of topics normally covered within the module. Each topic may not be dealt with in the same detail.

Learning Outcomes

On completion of this module, the student should be able to:1. Adopt a generalised approach to the synthesis and analysis of measurement systems.2. Understand the principles of operation of devices based on physical measurands.3. Appreciate the factors which affect the design of a measurement system based on a customer specification requirement.4. Critically appraise a range of optional devices for a specific industrial measurement task.5. Undertand the relationship of measurement to quality standards and vice versa.6. Apply techniques to improve the performance of measurement systems.

Teaching / Learning Strategy

Full-time Lecture material will be delivered within the first week of the 3 week cycle. The material covered in the lectures will be reinforced and consolidated through tutorials and practical laboratory work which will take place over the following 2 weeks. Students will study and solve industrially relevant measurement problems encouraging divergent thinking and broader, deeper learning. Students will take part in practical laboratory work which will enhance data acquisition and manipulation skills, technical report writing skills and communication skills in general. Through the study of national and international codes of practice, students will be global learners. Through the use of the managed learning environment GCU Learn, students will become more engaged, flexible and independent in their learning as there will be a wide range of learning resources available on line. In addition to the core module content, links to relevant databases for the sourcing of additional reading material from the current research in the subject area from around the world will be made available. Students will receive individual feedback on their performance though one-to-one contact with tutors at tutorials and practical sessions and marked coursework which will reinforce the students' learning. Distance Learning Students will be provided with a study pack which will cover the core lecture and tutorial material. All material will be available electronically through GCU Learn which will encourage students to become more engaged, flexible and independent in their learning as there will be a wide range of learning resources available on line. Discussion Boards will be used to encourage peer support for learning. Students will study and solve industrially relevant measurement problems encouraging divergent thinking and broader, deeper learning. Students will be provided with sample data which they will be expected to analyse off-line, in addition to completing the following example tasks which will enhance the student's understanding: *Use techniques to linearise the output of a thermistor; *Use a Microsoft Excel spreadsheet for data analysis and simulation. Through these exercises students will enhance data acquisition and manipulation skills, technical report writing skills and communication skills in general. Tutors will be available for consultation via GCU Learn, e-mail and telephone. Materials, including AV versions of lectures and tutorials, will be available via GCULearn. Students will receive individual feedback on their performance though e-mail and telephone contact, and marked coursework feedback which will reinforce the students' learning.

Indicative Reading

Principles of Measurement Systems, J.P. Bentley, 2005, 4th Edition, Longman. ISBN-10: 0130430285 Measurement Systems- Application and Design, E.O. Doebelin, 2003, 5th Edition, McGraw-Hill International, ISBN 0-07-1194657 Introduction to Instrumentation and Measurements, Third Edition Robert B. Northrop, University of Connecticut, Storrs, USA June 2014: 254 x 178: 927pp Hb: 978-1-4665-9677-1: Measurement Systems and Sensors (2nd Ed pending), Waldemar Nawrocki, Artech House An Introduction to Uncertainty in Measurement, L Kirkup and B Frenkel, 2006, Cambridge University Press, ISBN 978 0 521 60579 3 Sensor Systems for Environmental Monitoring , M.Campbell (Ed), 1997, Vols. 1 and 2, Blackie Academic & Professional. ISBN 0-7514-0267-2

Transferrable Skills

A range of transferable skills will be developed in this module: 1. Practical Skills: manipulative, observational, recording. 2. Communication Skills: written, oral, aural, ICT (Word, Excel and Powerpoint). 3. Judgemental Skills: critical thinking, appraisal. 4. Problem Solving Skills: analytical. 5. General Skills: safety awareness, interpersonal.

Module Structure

Activity Total Hours
Practicals (FT) 12.00
Practicals (FDL) 12.00
Tutorials (FDL) 12.00
Assessment (FDL) 14.00
Assessment (FT) 14.00
Independent Learning (FT) 92.00
Independent Learning (FDL) 112.00
Tutorials (FT) 12.00
Lectures (FT) 20.00

Assessment Methods

Component Duration Weighting Threshold Description
Coursework 1 n/a 50.00 45% Analysis of a Measurement System (Learning Outcomes 1, 3, 4 & 6)
Exam (Exams Office) 2.00 50.00 45% Learning Outcomes 1, 2, 5 & 6