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Data Acquisition

Code 12879
Year 1
Semester S1
ECTS Credits 6
Workload PL(15H)/T(30H)/TP(15H)
Scientific area Instrumentação, Automação e Controlo
Entry requirements Not applicable.
Mode of delivery The mode adopted is the face-to-face.
Learning outcomes The unit Data acquisition aims to provide students with 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 to transmit signal, and the architectures used to build data acquisition systems.
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]
[A] Georges Asch, Acquisition de donnés – du capteur à l’ordinateur ,Dunod , 3ª edição, Paris 2011, ISBN 978-2-10-056469-9.
[B] Practical Data Acquisition for Instrumentation and Control Systems , John Park, Steve Mackay, 2003, Newnes.
[B] Jonas Berge, Fielbus for Process Control: Engineering, Operation, And Maintenance, ISA - Instrument Society of America, 2002.

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.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2020-01-16

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