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Data Acquisition

Code 15278
Year 2
Semester S1
ECTS Credits 6
Workload PL(15H)/T(30H)/TP(15H)
Scientific area Informatics, Automation and Control
Entry requirements Not applicable.
Mode of delivery The mode adopted is the face-to-face.
Learning outcomes This curricular unit aims to provide the basic concepts related to the data acquisition systems. Mainly, the main functions and characteristic of the elements that belong to the data acquisition systems, the main ways of transmitting signals and their different architectures.
At the end of this course the student should be able to:
• Describe the different architectures of data acquisition systems and know how to select the most appropriate architecture for each problem;
•Interpret and apply the specifications of the main elements that compose the data acquisition signal chain;
• Describe the most important techniques of AD and DA conversion
• Describe the architecture of data acquisition systems;
• Design and configure data acquisition system based on fieldbus networks: the CANopen case;
- Design data acquisition systems for specific applications;
- Ability to operate with the laboratorial instrumentation.
Syllabus 1 Introduction to data acquisition chain;
1.1 Function and structure
1.2 Requirements and metrological characteristics
2. Signals and analog signal conditioning
2.1 General characteristics of transducers
2.2 Traducers for measuring specific quantities
2.3 Analog signal conditioning
3. Signal conversion
3.1 Sampling and reconstruction of signals
3.2 Sampling rate and Nyquist criterion
3.3 Analog to digital conversion
3.4 Digital to analog conversion
4. Data Acquisition Systems
4.1 Architectures
4.2 Analog signal transmission
4.3 Digital signal transmission
4.4 Fieldbus technology for data acquisition systems
4.5 The CANOpen protocol
Main Bibliography [A] The Data Conversion Handbook, Edited by Walt Kester, Newnes, 2005, ISBN 0-7506-7841-0. Also published as Analog-Digital Conversion, Analog Devices, Inc. 2004, ISBN 0-916550-27-3. (
[A] Georges Asch, Acquisition de donnés – du capteur à l’ordinateur ,Dunod , 3ª edição, Paris 2011, ISBN 978-2-10-056469-9.
[A] Linear Circuit Design Handbook, Edited by Hank Zumbahlen, Published by Newnes/Elsevier, 2008, ISBN-978-0-7506-8703-4 (Also published as Basic Linear Design, Analog Devices, 2007, ISBN-0-916550-28-1). (
[B] Practical Data Acquisition for Instrumentation and Control Systems, John Park, Steve Mackay, 2003, Newnes. ISBN: 9780750657969
[B] Jonas Berge, Fielbus for Process Control: Engineering, Operation, And Maintenance, ISA - Instrument Society of America, 2002. ISBN: 978-1556179044
Teaching Methodologies and Assessment Criteria The Assessment is accomplished, with the adjusted weighting, of the theoretical knowledge assimilated by the student, his performance in laboratory activities, his bibliographic research activities and his commitment.
Assessment methods and criteria:
Final mark = {50%TESTE} +{40%LAB + 10%TI}
LAB > Laboratory activities
TI > Research work
TESTE> Exam or test mark.
It is necessary to obtain a minimum grade of 9,5 Val at LAB component be admitted to exam.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2022-02-03

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