(Ass): ASSIGNMENT

Academic Year 2021/221
ASSIGNMENT/COURSEWORK PROFORMA
Module code:MN5618
Assessment title:Advanced measurement systems and dataanalysis
Module tutors:Haitham Elhussieny
Main objectives of the assessment:To enable students to demonstrate their in-depth knowledge of the principles of advancedmeasurement system and data analysis and abilities to apply them to solve practical problems relatedto advanced measurement system and data analysis.
Brief Description of the assessment:Given some measurement tasks in an industrial context, you will need to complete three tasks: thefirst two tasks are to identify and evaluate the suitable measurement solutions and the third task is todesign/develop the Matlab or Excelprogram for the measurement data analysis. These tasks arerelated to the key topics of the module.
Learning outcomes for the assessment (refer to theappropriate module learning outcomes)Students will be able to demonstrate the following:• To gain systematic understanding of measurement errorsand uncertainties;• To gain comprehensive understanding of the operatingprinciples of advanced sensors;• To develop critical awareness of the range and capabilitiesof advanced measuring instruments;• To gain systematic understanding of linear/nonlinear modelsfor advanced data analysis.• To perform error analysis and uncertainty evaluation ofpractical measurement systems;• To critically apply and evaluate different linear/nonlinearmodels for advanced data analysis.• To gain practical experience in the use of measuringinstruments;• To develop critical awareness of the wide applications ofadvanced measuring instruments.
Assessment criteria:1. Understanding of measurementsystems (including sensors /transducers, CMMs and surfacemeasuring machines) (40%)2. Consideration of errorsources, calibration andtraceability (10%)3. Selection considerations (10%)4. Understanding of nonlinearleast square method (15%)5. Data analysis algorithm / coding(15%)6. Discussions and presentation(10%)Task 1: 45%Task 2: 20%Task 3: 35%
Assessment method by which a student can demonstrate the learningoutcomes:Identification and evaluation of the practical measuring systems for thegiven measurement tasks. Design and implementation of algorithms andMatlab programs for practical data analysis.
Weighting:100% of module marks
Format of the assessment/coursework: (Guidelines on the expected format and length ofsubmission): *Note: full reports may not exceed 30 pages (including appendices)Format is a formal written report including diagrams/code; calculations (with data; formula; workingsand assumptions) and discussion/ comments. Report to be written using Word in a 12 point font.Typical length of report is 2500 words, comprising Title Page; Introduction; Task 1, Task 2,Discussions, Conclusions and References. Word count does not include code done in Matlab or excel,which should be included in an appendix.
Assessment date/submission deadline:Please submit by 11:59 am UK Time on Thursday, 3 March 2022 via WISEflow** Please ensure to give yourself enough time to submit before the deadline.
Academic Year 2021/222
Indicative reading list:• Fraden J. (2015). Handbook of modern sensors: physics, designs, and applications. Springer.• Morris A S. (2012). Measurement and instrumentation: theory and application. Academic Press.• Leach R. (2014). Fundamental principles of engineering nanometrology (Micro and NanoTechnologies). Elsevier.• Flack D R and Hannaford J. (2005). Fundamental good practice in dimensional metrology”. NPLGood practice guide No. 80 (free download from www.npl.co.uk).• Bell S A. (2001). A beginner’s guide to uncertainty in measurement. NPL good practice guide No.11 (free download from www.npl.co.uk).• Barker R M, Cox M G, Forbes A B and Harris P M. (2007). Software Support for Metrology BestPractice Guide No. 10: Discrete Modelling and Experimental Data Analysis. National PhysicalLaboratory, Teddington.• Higham D J, Higham N J. (2016). MATLAB Guide, Third edition. Philadelphia: Society forIndustrial and Applied Mathematics.• Bell S A. (2001) A beginner’s guide to uncertainty in measurement. NPL good practice guide No.11 – www.npl.co.uk
Other informationUse your student ids for anonymity (i.e. no student names on the assignment itself).It is the student’s responsibility to ensure they are aware of polices and practice ongood academic practice and plagiarism. You can find more information about this in theSenate Regulations: Senate-Regulation-6-2020-07-01.pdf (brunel.ac.uk).
Academic Year 2021/223ASSIGNMENTTask 1:Over recent years your company has been making substantial investments in automated machine tools,butthe inspection techniques have remained virtually unchanged. Most operators use go/no-go gaugesand comparators etc. The emphasis has been on the detection of non-conforming components which areeitherscrapped or reworked.The largest overall linear dimension on any components manufactured by the company is 450 mm. Themainproducts are turned and milled components with a substantial number of features with tolerancesin the region of 20 µm, but some precision spindles have tolerances of only 5 microns. The surfaceroughness ranges from 12-0.025 µm.The Managing Director has given you the task of preparing a report on the types of equipment whichcould be employed to improve the measurement and product quality within the company. You shouldaim to demonstrate comprehensive knowledge of relevant measuring techniques with sound /innovative solution (paying attention to new and emerging technologies) and also skills for broaderconsiderations, e.g. implications due to batch sizes, component types and materials, commercial andindustrial constraints. Your report should cover the use of suitable sensors and transducers (e.g. LVDTsand/or optical encoders), coordinate measuring machines (CMMs) and surface measuring machines,including their operating principles, characteristics, performance. Since CMMs are complicatedmeasuring machine, you should discuss their common error sources and how you are going to calibratethem. You should also describe theimportant surface parameters the company will likely use.(45%)Task 2:The company is building a low-force material testing machine and needs a force transducer to measurethe load (up to 0.5 kN) and a displacement transducer to measure the movement (with a measuring rangeof 500 mm and resolution of 10 nm).(a) Using a sketch, describe a suitable transducer design for load measurement. How can the sensitivity ofthe force transducer be increased?(b) Describe the signal conditioning and temperature compensation for the force transducer.(c) What would be a suitable transducer for the displacement accuracy required?(d) Describe the measurement traceability chain for the displacement transducer you selected in (c).(20%)Task 3:Your company has a manual 2D microscope which can measure the coordinates of 2D profiles. You havebeen asked to develop a least square algorithm in either Matlab or Excel to calculate the centre andradius of circular features.Describe briefly how measurement uncertainty is evaluated. Given the standard uncertainty of x and ycoordinates is 40 µm, calculate the uncertainties associated with the radius and centre coordinates.Describehow to reduce the measurement uncertainties.To test your algorithm, you can use the following measurement results, the XY coordinates recorded fora ring gauge:Academic Year 2021/224Measurement Results (unit: mm)
X
Y
100.027
9.972
87.871
54.955
55.016
87.950
9.969
99.947
-35.038
87.922
-67.983
55.071
-79.997
10.023
-67.853
-34.982
-34.939
-67.983
10.022
-80.039
55.000
-67.960
87.951
-35.001
100.008
10.057
(35%)Academic Year 2021/225Annex I: Brunel University Generic Masters-level Grade DescriptorsThese generic grade descriptors are intended to be used as a tool throughout the assessment process (inassessment design, marking/grading, moderation, feedback and appraisal) for any assessment set at Masters Levelin the University.They are designed to show no disciplinary bias and are not intended to act as surrogate award oraward classification descriptors. The grade descriptors should be read in conjunction with the learning outcomesassociated with the assessment.Grade A++Work of exceptionally high quality, commensurate with publication in a highly esteemed peer-reviewed journal.Clearlydemonstrates a sophisticated, critical and thorough understanding of the topic. Provides clear evidence oforiginalityand clearly demonstrates the ability to develop an independent, highly systematic and logical or insightful argumentorevaluation. Demonstrates exceptional ability in the appropriate use of the relevant literature, theory,methodologies, practices, tools, etc., to analyse and synthesise at Masters Level. Shows exceptional clarity, focusand cogency in communication.Grade Band A (A+, A, A-)Clearly demonstrates a sophisticated, critical and thorough understanding of the topic. Provides evidence oforiginalityof thought and clearly demonstrates the ability to develop an independent, highly systematic andlogical or insightful argument or evaluation. Demonstrates excellence in the appropriate use of the relevantliterature, theory, methodologies, practices, tools, etc., to analyse and synthesise at Masters Level. Showsexcellent clarity, focus and cogency in communication.Grade Band B (B+, B, B-)Clearly demonstrates a well-developed, critical and comprehensive understanding of the topic. Clearlydemonstrates theability to develop an independent, systematic and logical or insightful argument or evaluation.Demonstrates a high degree of competence in the appropriate use of the relevant literature, theory,methodologies, practices, tools, etc., to analyse and synthesise at Masters Level. Shows a high level of clarity, focusand cogency in communication.Grade Band C (C+, C, C-)Demonstrates a critical and substantial understanding of the topic. Demonstrates the ability to develop anindependent,systematic and logical or insightful argument or evaluation. Demonstrates a significant degree ofcompetence in the appropriate use of the relevant literature, theory, methodologies, practices, tools, etc., toanalyse and synthesise at Masters Level. Provides evidence of clarity, focus and cogency in communication.Grade Band D (D+, D, D-)Provides evidence of some critical understanding of the topic. Demonstrates some ability to develop a structuredargument or evaluation. Demonstrates an acceptable degree of competence in the appropriate use of the relevantliterature, theory, methodologies, practices, tools, etc., to analyse and synthesise, but not at Masters Level.Providesevidence of effective communication.Grade Band E (E+, E, E-)Work that demonstrates significant weaknesses, but which provides strong evidence that Grade D is within thereach ofthe student.Grade FWork that is unacceptable.[Available from intranet:https://intra.brunel.ac.uk/s/QSO/_layouts/15/WopiFrame.aspx?sourcedoc=/s/QSO/Handbook%20Text/Postgraduate%20grade%20descriptors.doc&action=default&DefaultItemOpen=1]

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