Short Title:Measurement and Interfacing for Control
Full Title:Measurement and Interfacing for Control
Module Code:MEAS H4001
 
Credits: 5
NFQ Level:8
Field of Study:Mechanics and metal work
Module Delivered in 2 programme(s)
Reviewed By:FIONA CRANLEY
Module Author:COLM COSTELLO
Module Description:This module aims to apply the methods of mathematical modelling to the identification of the performance characteristics of number of measurement devices. Different transducers and the mathematcial models underlying their behaviour and performance as well as how they are interfaced to a computer based system will be assessed. Data acquistion will be covered through laboratory sessions.
Learning Outcomes
On successful completion of this module the learner will be able to:
LO1 Characterise the operation of various sensor systems and their application in terms of steady state and dynamic measurement characteristics.
LO2 Develop steady state and dynamic mathematical models for mechanical, electrical and thermal measuring systems.
LO3 Analyze errors in measurement systems, including loading errors, interfering and modifying inputs, transient response errors and steady state error.
LO4 Analyse signal conditioning circuits, including dynamic compensation circuits.
LO5 Specify, implement and assess an instrument calibration procedure.
LO6 Interface various transducers with a data acquisition system, including strain gauges, thermocouples, accelerometers, tachogenerators and potentiometers.
LO7 Design and implement a data acquisition system (DAQ) virtual instrument (VI) to implement a feedback control system
LO8 Design a group solution to an open measurement problem and design and implement an experiment to evaluate the solution.
Pre-requisite learning
Co-requisite Modules
No Co-requisite modules listed
 

Module Content & Assessment

Content (The percentage workload breakdown is inidcative and subject to change) %
Measurement Devices
Resistive Based Devices. Piezo Electric based Devices. Encoders. Temperature Devices. Flow and Pressure Devices. Smart Sensors
30.00%
Instrument Calibration:
Process instrument calibration, standards laboratories.
10.00%
Representation of Measurement Devices, Components and Systems:
System modeling and Block diagrams, differential equations, Laplace transforms, transfer functions of linear systems, response of First and Second order systems. Steady state and transient response and frequency response of devices and systems. Analysis of steady state error.
20.00%
Measurement Systems:
Signal conditioning, Wheatstone Bridge Circuits, Operational Amplifiers, and Instrumentation Amplifiers. Filters. Data acquisition components. Analog to Digital Conversion. Digital to Analog Conversion. Shielding Grounding. System Loading. Power Transfer. Frequency Measurement and Timing Control.
30.00%
Error Analysis:
Static Characteristics. Accuracy, Precision, Bias and Sensitivity. Combination of Errors. Linearity. Scale, Span. Loading Effects.
10.00%
Assessment Breakdown%
Course Work40.00%
End of Module Formal Examination60.00%
Course Work
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Practical/Skills Evaluation Basic Data Acquisition System Introduction: Installation of system hardware. Analog Signal Logging. Virtual Instruments. Signals and Signal Grounding. Signal Generation. Assessment by upload of exercise. 3,6 2.00 Week 1
Practical/Skills Evaluation Controlling Data Acquisition using loops of different types, program flow. Setups for Timing events Counting events.Assessment by upload of exercise. 6 2.00 Week 1
Practical/Skills Evaluation AI and AO with attention paid to AO and timing problems. Testing sampling at high speed on multiple channels.Assessment by upload of exercise. 6 2.00 Week 1
Practical/Skills Evaluation Waveform analysis (Frequency, RMS and so on) and Building arrays and using arrays.Assessment by upload of exercise. 6 2.00 Week 1
Practical/Skills Evaluation Students (in small groups) will undertake experiments with a number of different sensors and data acquisition systems.1 Strain Gauge (Students will install a strain gauge in a tensile, cantilever or torsion system to create a load cell. These will be connected to a data acquisition system, calibrated and then tested), 2 Potentiometer and Tachogenerator ( Position or Velocity Measurement: Use a position or velocity measurement device. Interface with data acquisition system. Calibrate the device and derive performance specifications. Estimate the steady state performance characteristics), 3 Thermocouple (Transient Response of Temperature Measurement System: Use Data Acquisition to obtain an output from an analog temperature device). 4 Simulation of Instrument (Using the simulation capability of the Labview to build simulation of different devices. These practical sessions involves wiring and setting up the signal conditioning equipment, programing the VIs and completing a calibration or transient test on the devices. At the end of the four sessions the students will be individually assessed in a practical session where they have to complete a random task from the previous experiments. They will be assessed on their generation of the VI and questioned on aspects of the system. 3,5,6 10.00 Week 6
Practical/Skills Evaluation Control System. Students will Build a VI to acquire analog signals of both input and output from a system to be controled and develop a control strategy for the system. Assessment by summary report with results and conclusions. 6,7 3.00 Week 7
Practical/Skills Evaluation Acceleration Measurement: Interface accelerometer device with data acquisition system. Capture data and perform integration process to obtain velocity and position data and compare with independent position data. Assessment by summary report with results and conclusions. 1,3,6 3.00 Week 9
Practical/Skills Evaluation Student Designed Experiment: Students groups will be assigned a random loosely described experiment or test to complete. This will target some of the sensors used or conditioning theory and using them in an applied experiment or test. Assessment by presentation. 3,4,5,6,8 10.00 Week 12
Written Report Full written lab report on one of the main labs. Individual students will be assigned one of the labs to write up a formal report. Potentiometer/Tachogenerator, Thermocouple, Strain Gauge, Simulation, Accelerometer or Control System. 3,4,5 6.00 Week 12
End of Module Formal Examination
Assessment Type Assessment Description Outcome addressed % of total Assessment Date
Formal Exam End-of-Semester Final Examination 1,2,3,4,5 60.00 End-of-Semester
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.

IT Tallaght reserves the right to alter the nature and timings of assessment

 

Module Workload

Workload: Full Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture Class Based Instruction 2.00 Every Week 2.00
Practical Lab Based Instruction 2.00 Every Week 2.00
Independent Learning Time Study of Notes and Completetion of Excerises 4.00 Every Week 4.00
Total Weekly Learner Workload 8.00
Total Weekly Contact Hours 4.00
Workload: Part Time
Workload Type Workload Description Hours Frequency Average Weekly Learner Workload
Lecture Class Based Instruction 2.00 Every Week 2.00
Practical Lab Based Instruction 2.00 Every Week 2.00
Independent Learning Time Study of Notes and Completetio of Excercises 4.00 Every Week 4.00
Total Weekly Learner Workload 8.00
Total Weekly Contact Hours 4.00
 

Module Resources

Required Book Resources
  • Course Notes, n/a
  • David G. Alciatore, Michael B. Histand 2007, Introduction to mechatronics and measurement systems, McGraw-Hill New York [ISBN: 0072963050]
  • Godfrey C. Onwubolu, Mechatronics, 1st ed Ed. [ISBN: 0750663790]
  • Ernest O. Doebelin, Measurement systems, 5th ed Ed. [ISBN: 0071194657]
This module does not have any article/paper resources
This module does not have any other resources
 

Module Delivered in

Programme Code Programme Semester Delivery
TA_EMECH_B B.Eng (Honours) in Mechanical Engineering [1 year Add-On] 7 Mandatory
TA_EAMEC_B B.Eng(Hons) in Mechanical Engineering [Ab Initio] 7 Mandatory