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Signal Conditioning, Conversion and Transmission

Code:

LACI22020

Sigla:

ACTS

Áreas Científicas
Classificação	Área Científica
OFICIAL	Instrumentação e Me

Ocorrência: 2022/2023 - 2S

Ativa?	Yes
Unidade Responsável:	Departamento de Sistemas e Informática
Curso/CE Responsável:

Ciclos de Estudo/Cursos

Sigla	Nº de Estudantes	Plano de Estudos	Anos Curriculares	Créditos UCN	Créditos ECTS	Horas de Contacto	Horas Totais
EACI	61	Plano de Estudos 14	2	-	6	75	162

Língua de trabalho

Portuguese

Objetivos

Study, implementation and analysis of elementary circuits of signal conditioning for transducer interface.
Study of analog-digital and digital-analog conversion methods, and their application in the area of instrumentation and measurement. Characterization and implementation of signal modulation and transmission techniques in industrial networks and in instrumentation and measurement systems with telemetry.

Resultados de aprendizagem e competências

Study, implementation and analysis of elementary circuits of signal conditioning for transducer interface.
Study of analog-digital and digital-analog conversion methods, and their application in the area of instrumentation and measurement. Characterization and implementation of signal modulation and transmission techniques in industrial networks and in instrumentation and measurement systems with telemetry.

Modo de trabalho

Presencial

Pré-requisitos (conhecimentos prévios) e co-requisitos (conhecimentos simultâneos)

Attendance in this subject presupposes that students have basic knowledge of instrumentation, electrotechnics and electronics.

Programa

1- Operational Amplifiers (6H)
1.1-Principle and operating zones of the AmpOp, 1.2-Common Mode Voltage and Differential Mode Voltage, 1.3-Optimal AmpOp Model, 1.4-Deviations from the Ideal Case, 1.5-Equivalent Scheme, 1.6-Polarization Currents, 1.7 1.10-Product gain bandwidth, 1.11-'lew-rate ', 1.12-Mode rejection factor. 1.13-Typical parameters of an AmpOp, 1.14-Study of noise (eg, thermal noise) and interference phenomena in circuits with AmpOp

2 - Fundamental, linear and non-linear circuits, with AmpOp (4H)
Inverter and non-inverter amplifiers, 2.3-Inverter and differentiator, 2.4-Integrator and diverter, 2.5-Comparators, 2.6-Comparators with hysteresis: 'Schmitt Trigger', 2.7-Phase Circuit

3 - Non-linear circuits with AmpOp (2H)
3.1-Superdiode, 3.2-Exponential amplifier, 3.3-Logarithmic amplifier and mixer circuit

4 - Instrumentation and isolation amplifiers (2H)
4.1- Differential amplifier, 4.2- Isolation amplifier, 4.3- Bridge instrumentation amplifier: with three and two AmpOp

5 - Study of active filters (4H)
5.1-Generic characteristics of low-pass, high-pass, band-pass and band-reject filters, 5.2-Specification of filters based on transfer function gain, 5.3-Active 1st order filters: high, 5.4-Sallen & Key filters of 2nd order: low pass, high pass, bandpass and band reject

6 - Digital / Analog and Analog / Digital Converters (6H)
6.1-D / A Converters: Transfer function, 6.2-Principle Scheme, 6.3-R-2R Network, 6.4-Non-ideal D / A Converter, 6.5-A / D Converters, 6.6-Conversion Methods, 6.7-Parallel Converter or-flash, 6.8-Converter of successive approximations, 6.9-Double ramp converter, 6.10-Voltage / frequency conversion, 6.11-Non-ideal A / D converter

7 - Modulation of Signals and Transmission Supports (6H)
7.1.1-Principles of transmission, 7.1.2-Amplitude modulation, 7.1.3-Frequency modulation, 7.2.1-Transmission supports: primary and secondary parameters; 7.2.2-Twisted pair, 7.2.3-Coaxial cable, 7.2.4-Optical fibers, sources and optical detectors

Bibliografia Obrigatória

R.V.Dionísio; Conceitos Fundamentais Sobre Teoria de Circuitos, 2006 (Available on Moodle platform)
A. Bruce Carlson; Communication Systems, An Introduction to Signals and Noise in Electrical Communication, McGraw-Hill, 1986. ISBN: ISBN: 0-07-100560-9 ((Chapters 6, 7 e 12))
D. Pereira; Manual de Problemas de Circuitos Eléctricos, Escolar Editora, 1998. ISBN: ISBN: 972-592-103-8
D. Pereira; Apontamentos das aulas teóricas, 2007 (Available on Moodle platform)
R.V.Dionísio; Modelos Teóricos de Transmissão Para Linhas Bifilares, 2008 (Available on Moodle platform)
D. Pereira; Fichas de problemas, 2007 (Available on Moodle platform)
D.Pereira e V.Viegas; Guia de trabalhos de laboratório, 2007 (Available on Moodle platform)

Bibliografia Complementar

Donald E. Scott; An Introduction to Circuit Analysis - A System Approach
Frederick F. Driscoll; Operational Amplifiers and Linear Integrated Circuits

Métodos de ensino e atividades de aprendizagem

Theoretical classes will serve as a theoretical exposition of the syllabus contents of the course. The practical classes will have a component based on the exemplification, in terms of applications, the content taught in theoretical classes and problem solving and worksheets.
In laboratory classes the following set of works is planned:
Lab. 1 Operational Amplifier
Lab. 2 Instrumentation Amplifier and Schmitt Trigger
Lab. 3 Frequency filters
Lab. 4 DA and AD converter
Lab. 5 Converter Voltage / Frequency and Frequency / Voltage
Lab. 6 AM Transmitter (demonstration)

In-person Teaching Mode:
1) Learning activities such as solved or unsolved exercises, with solutions; unresolved exercises or questions, without solutions; forum and/or chat in Moodle; quiz.
2) Monitoring of learning by following objectives; in resolving doubts.
3) Assessment activities as assignments; reports; simulations.

Software

https://www.ti.com/tool/TINA-TI

Tipo de avaliação

Distributed evaluation with final exam

Componentes de Avaliação

Designation	Peso (%)
Exame	100,00
Total:	100,00

Componentes de Ocupação

Designation	Tempo (Horas)
Elaboração de projeto	20,00
Trabalho laboratorial	30,00
Trabalho escrito	50,00
Total:	100,00

Obtenção de frequência

The written evaluation has a weight of 50% in the final grade and is done by exam in one of the two approved periods or by continuous written evaluation. The latter consists of two tests, and the minimum score in each of them will have to be greater than or equal to 9.5 values. The laboratory evaluation has a weight of 30% in the final mark, being obligatory the delivery of the reports within a week of the date of its execution. The practical assessment has a weight of 20% of the final grade, in which 5% are conditioned to the delivery of a pre-report of the practical work until the 10th week of classes.
The minimum grade in any component of the assessment is 9.5 points.
The classification of the laboratory component is individual and depends on the preparation of the work, on the performance of the student in his/her performance and on the classification of the report submitted within the stipulated period.
Final classifications of more than 17 values ​​will be defended in oral tests, whenever the faculty of the course unit deems it necessary.
Rules for taking tests:
• When requested, an identification document must be presented during the tests.
• Only written tests are accepted in test / examination books of EST Setúbal.
• The room can only be abandoned 30 minutes after the start of the test and implies the final delivery of the test, and the delay can not exceed 15 minutes under any circumstances.
• During the tests, only calculating machines with graphic or alphanumeric capacities can be used if the teacher authorizes them.
• During the tests, the handling or display of mobile phones (which should be switched off) and other electronic equipment is not allowed, and any of these devices are used for the voiding of the test.

NOTE: in case of suspicion of illegality in a test, the RUC may request an oral presentation.

Fórmula de cálculo da classificação final

Final Grade= Written Assessment x 0.5 + Laboratory Assessment x 0.3 + Project Assessment x 0.2

Observações

Rationale of the number of ECTS
The semester consists of 20 weeks, 15 lessons and 5 preparation and assessment of knowledge. The weekly on-site hours comprise 3 hours theoretical-practical (3TP) and 2 hours of laboratory which, after 15 academic weeks, totals 75 hours. For each theoretical-practical class the student devotes 1.5 hours to understand the content of the subjects taught, to consult bibliography, to solve additional problems based on an autonomous work and eventually to put doubts; to prepare the weekly laboratory practice, the student dedicates 1 hour per week to the study of the laboratory guide and associated theoretical topics, including the principles and methods of measurement, modes of operation and specifications of the equipment used, also dedicating 1 hour to the elaboration of reports. By counting classroom hours and study hours per week, a total of 10 hours of work per week is obtained, resulting in a total of 150 hours of work after 15 teaching weeks. To prepare and carry out the evaluation, the student devotes an average of 2 days of study (16h) to the preparation of the written test, which lasts 2 hours. The total workload foreseen is 168 hours, giving a total of 6 ECTS.

Fraud mitigation mechanisms and their consequences: According to nº 9 of Order nº40/President/2021, of 25 February, students are informed that, if there is evidence of fraud when taking the test, an oral test may be requested in order to prove the knowledge of the student. student in the area.

Omitted questions respect the legal legislation in force and the internal regulations of the management bodies of ESTSetúbal/IPS.