Signal Conditioning, Conversion and Transmission

Scholar Year: 2019/2020 - 2S

Courses

Head Teacher Responsability Rui Nuno de Gouveia Amorim Vilela Dionisio Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 3 1 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 2 6,00 Rui Dionísio   3,00 Prática Laboratorial Totals 1 1,00 Artur Graxinha   6,00

Teaching language

Portuguese/English

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

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.

Syllabus

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

Software

Circuit Maker 2000 Standard

http://www.ti.com/tool/tina-ti&DCMP=hpa_amp_general&HQS=Other+OT+tina-ti

https://easyeda.com/page/download

Demonstration of the syllabus coherence with the UC intended learning outcomes

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

Teaching methodologies

Distributed evaluation with final exam.

Demonstration of the teaching methodologies coherence with the curricular unit's intended learning outcomes

The achievement of frequency in the discipline in terms of the laboratory component is assured by the execution and delivery of the reports of laboratory work, within one week after its conclusion. It is mandatory to carry out all laboratories.
The approval of the practical component is obtained and with the accomplishment of a project work, with oral discussion in the last laboratory class, about the same.
The approval of the theoretical component is ensured by performing the written evaluation in one of the two examination periods of the curricular unit or through a continuous written evaluation.

Assessment methodologies and evidences

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 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.

Attendance system

In accordance with the norms foreseen in the legislation.

Assement and Attendance registers

Primary Bibliography

Secondary Bibliography

Observations

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.