mecn 4600 inter - bayamon lecture 1 mechanical measurement and instrumentation mecn 4600 professor:...
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LectureLecture
11Mechanical Measurement and Mechanical Measurement and
InstrumentationInstrumentation MECN 4600 MECN 4600
Professor: Dr. Omar E. Meza CastilloProfessor: Dr. Omar E. Meza [email protected]
http://facultad.bayamon.inter.edu/omeza
Department of Mechanical EngineeringDepartment of Mechanical Engineering
Inter American University of Puerto RicoInter American University of Puerto Rico
Bayamon CampusBayamon Campus
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Catalog DescriptionCatalog Description: : Analysis of measurement Analysis of measurement fundamentals. Emphasis on instrument types, fundamentals. Emphasis on instrument types, characteristics, instrumentation diagrams and characteristics, instrumentation diagrams and statistical analysis of measurement. Study of statistical analysis of measurement. Study of mechanical and electrical sensors. Emphasis on mechanical and electrical sensors. Emphasis on pressure, level, temperature and flow gauges, and pressure, level, temperature and flow gauges, and other non conventional measures. Application of other non conventional measures. Application of computerized techniques for measuring, signal computerized techniques for measuring, signal conditioning and data acquisition in industrial conditioning and data acquisition in industrial processes and electromechanical systemsprocesses and electromechanical systems..
Prerequisites: Prerequisites: ENGR 3200 – Probability and ENGR 3200 – Probability and Statistics, ENGR 3360 – Fundamentals of Statistics, ENGR 3360 – Fundamentals of electronics.electronics.
Course Text: Course Text: Figiola, R. S. and Beasley, D. E., Figiola, R. S. and Beasley, D. E., Theory and Design for Mechanical MeasurementsTheory and Design for Mechanical Measurements 44thth Ed., John Wiley & Sons, 2005. Ed., John Wiley & Sons, 2005.
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SyllabusSyllabus
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Absences:Absences: On those days when you will be absent, On those days when you will be absent, find a friend or an acquaintance to take notes for find a friend or an acquaintance to take notes for you or visit the web page. you or visit the web page. Do not call or send an Do not call or send an e-mail the instructor and ask what went on in e-mail the instructor and ask what went on in class, and what the homework assignment is.class, and what the homework assignment is.
Homework assignments:Homework assignments: Homework problems will Homework problems will be assigned on a regular basis. Problems will be be assigned on a regular basis. Problems will be solved using the Problem-Solving Technique on solved using the Problem-Solving Technique on any white paper with no more than one problem any white paper with no more than one problem written on one sheet of paper. Homework will be written on one sheet of paper. Homework will be collected when due, with your name written collected when due, with your name written legibly on the front of the title page. It is graded legibly on the front of the title page. It is graded on a 0 to 100 points scale. Late homework (any on a 0 to 100 points scale. Late homework (any reason) reason) will not be acceptedwill not be accepted..
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Problem-Solving Technique:Problem-Solving Technique:
A.A. KnownKnown
B.B. FindFind
C.C. AssumptionsAssumptions
D.D. SchematicSchematic
E.E. Analysis, andAnalysis, and
F.F. ResultsResults
Quiz : Quiz : There are several partial quizzes during the There are several partial quizzes during the semester.semester.
Partial Exams and Final Exam: Partial Exams and Final Exam: There are three There are three partial exams during the semester, and a final partial exams during the semester, and a final exam at the end of the semester.exam at the end of the semester.
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Laboratory Reports: Laboratory Reports: There seven or eight There seven or eight experimental laboratories throughout the experimental laboratories throughout the semester. Laboratory reports must be submitted semester. Laboratory reports must be submitted by each group, one week after the experiment is by each group, one week after the experiment is done. The report must be written in English, in a done. The report must be written in English, in a professional format.professional format.
Final Project: Final Project: At the beginning of the semester At the beginning of the semester each group will select a project. It will include each group will select a project. It will include instrumentation and calibration of sensor. instrumentation and calibration of sensor.
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The total course grade is comprised of homework The total course grade is comprised of homework assignments, quizzes, partial exams, final exam, and assignments, quizzes, partial exams, final exam, and a project as follows:a project as follows: HomeworkHomework 15%15% QuizQuiz 15%15% Partial Exam (3) & Final ExamPartial Exam (3) & Final Exam 25%25% Laboratory ReportsLaboratory Reports 25%25% Final ProjectFinal Project 20%20%
100%100% Cheating: Cheating: You are allowed to cooperate on You are allowed to cooperate on
homework by sharing ideas and methods. Copying homework by sharing ideas and methods. Copying will not be tolerated. Submitted work copied from will not be tolerated. Submitted work copied from others will be considered academic misconduct and others will be considered academic misconduct and will get no pointswill get no points..
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Most Course Material (Course Notes, Handouts, Most Course Material (Course Notes, Handouts, and Homeworks) on WebPage of the courseand Homeworks) on WebPage of the course
Power Point Lectures will posted every week or Power Point Lectures will posted every week or twotwo
Office Hours: Office Hours: Monday and Wednesday @ 9:00 to 10:30 PMMonday and Wednesday @ 9:00 to 10:30 PM
Email: Email: [email protected]
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Course MaterialsCourse Materials
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Tentative Lecture ScheduleTentative Lecture Schedule
TopicTopic LectureLecture
Basic Principles of MeasurementsBasic Principles of MeasurementsResponse of Measuring Systems, System DynamicsResponse of Measuring Systems, System DynamicsError & Uncertainty AnalysisError & Uncertainty Analysis
1, 2 and 31, 2 and 3
Sensor & TransducersSensor & TransducersBasic Electronics, Signal ProcessingBasic Electronics, Signal Processing
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Measurement of PressureMeasurement of Pressure 55
Measurement of TemperatureMeasurement of Temperature 66
Measurement of Fluid FlowMeasurement of Fluid Flow 77
Measurement of LevelMeasurement of Level 88
Measurement of Stress-StrainMeasurement of Stress-Strain 99
Measurement of Time ConstantMeasurement of Time Constant 1010
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ReferenceReference
Figliola, R. S. and Beasley, D. E., Figliola, R. S. and Beasley, D. E., Theory and Design for Theory and Design for Mechanical MeasurementsMechanical Measurements, 3, 3thth Ed., John Wiley & Sons, Ed., John Wiley & Sons, 2000.2000.
Wheeler A.J. and Ganji Ahmed, Wheeler A.J. and Ganji Ahmed, Introduction to Introduction to Engineering ExperimentationEngineering Experimentation 2 2ndnd Ed., Pearson Prentice Ed., Pearson Prentice Hall, 2008.Hall, 2008.
Holman, J. P., Holman, J. P., Experimental Methods for EngineersExperimental Methods for Engineers, 7, 7thth. . Ed., McGraw-Hill, 2001.Ed., McGraw-Hill, 2001.
Beckwith, Marangoni, and Lienhard, Beckwith, Marangoni, and Lienhard, Mechanical Mechanical MeasurementsMeasurements, 5, 5thth Ed., Addison-Wesley, 1993. Ed., Addison-Wesley, 1993.
Smith, C. A. and Corripio, A. B., Smith, C. A. and Corripio, A. B., Principles and Practice Principles and Practice of Automatic Process Controlof Automatic Process Control, 2, 2ndnd Ed., John Wiley & Sons, Ed., John Wiley & Sons, 2006.2006.
Spitzer, D. W., Spitzer, D. W., Flow Measurement: Practice Guides for Flow Measurement: Practice Guides for Measurement and ControlMeasurement and Control, ISA, 2001,, ISA, 2001,
Electronic references of Instrumentation, fromElectronic references of Instrumentation, fromhttp://www.engnetbase.com/http://www.engnetbase.com/
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Introduction and Basic ConceptsIntroduction and Basic Concepts
Topic 1: MeasurementsTopic 1: Measurements
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One thing you learn in science is that One thing you learn in science is that there is no perfect answer, no perfect there is no perfect answer, no perfect measure.measure.
A. O. BeckmanA. O. Beckman
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To review the basic concepts of To review the basic concepts of measurement.measurement.
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Course ObjectivesCourse Objectives
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Significance of MeasurementSignificance of Measurement
The primary objective in any measurement system is to The primary objective in any measurement system is to establish establish the value or the tendency the value or the tendency of some variable.of some variable.
Measurement provides Measurement provides quantitative information quantitative information on the on the actual state of the physical variables and processes that actual state of the physical variables and processes that otherwise could only be estimated.otherwise could only be estimated.
Significant Results of Measurements are Significant Results of Measurements are Fundamental data for research, design and Fundamental data for research, design and
development,development, Basic input data for control of processes and Basic input data for control of processes and
operations,operations, Data for safe and economic performance of systems.Data for safe and economic performance of systems.
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General Measurement SystemGeneral Measurement System
Detector-transducer or Detector-transducer or sensor stagesensor stage
Intermediate or signal Intermediate or signal conditioning stageconditioning stage
Terminating or readout Terminating or readout stagestage
Feedback control stage Feedback control stage (optional)(optional)
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These stages form the bridge between the input to the These stages form the bridge between the input to the measurement system and the system output, a quantity that measurement system and the system output, a quantity that is used to infer the value of the physical variable measured. is used to infer the value of the physical variable measured. The relationship between the input information and the The relationship between the input information and the system output is established by a system output is established by a calibrationcalibration..
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Components of a General Measurement Components of a General Measurement SystemSystem
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Components of a General Measurement Components of a General Measurement SystemSystem Detector-transducer or sensor stage:Detector-transducer or sensor stage:
The physical variable to be measured is detected.The physical variable to be measured is detected. Signal is transformed into more usable form.Signal is transformed into more usable form. Insensitive to every other possible input.Insensitive to every other possible input. Minimize Minimize loading error.loading error.
Intermediate or signal processing stage:Intermediate or signal processing stage: The transduced signal is modified by one or more basic The transduced signal is modified by one or more basic
operations, such as amplification, filtering, operations, such as amplification, filtering, differentiation, integrating or averaging, etc.differentiation, integrating or averaging, etc.
Terminating or readout stage:Terminating or readout stage: Acts to indicate, record or control the variable being Acts to indicate, record or control the variable being
measured. Output may be measured. Output may be analog or digital.analog or digital. Feedback control stage:Feedback control stage:
In those measurement systems involved in process In those measurement systems involved in process control, feedback control stage contains a controller that control, feedback control stage contains a controller that interprets the measured signal and makes a decision interprets the measured signal and makes a decision regarding the control of the process.regarding the control of the process.
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CalibrationCalibration
Calibration affords the opportunity to check the Calibration affords the opportunity to check the instrument against a known standard and instrument against a known standard and subsequently to reduce errors in accuracy.subsequently to reduce errors in accuracy. Example: Example: Calibration of a flow-meterCalibration of a flow-meter Comparison with a standard flow-measurement Comparison with a standard flow-measurement
facility.facility. Comparison with a flow-meter of known accuracy, Comparison with a flow-meter of known accuracy,
which is higher than the instrument to be calibrated.which is higher than the instrument to be calibrated. Using indirect measurements e.g. weighing certain Using indirect measurements e.g. weighing certain
amount of water in a tank and recording the time amount of water in a tank and recording the time elapsed for this quantity to flow.elapsed for this quantity to flow.
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Due, Due, Tuesday, January 29, 2013Tuesday, January 29, 2013
Omar E. Meza Castillo Ph.D.Omar E. Meza Castillo Ph.D.
Homework1 Homework1 WebPage WebPage
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