Class Instrumentation and Measurements in Biomedical Engineering

The scope of this curricular unit encompasses the study of materials, technologies and test equipment used in electrical and computer engineering. The fundamental concepts of Metrology, with their correspondent practical application, through a strong laboratorial component are also lectured. Therefore, the need for the use of Metrology arises naturally throughout the developed work. The pertinence of this unit is then clear: It constitutes a foundation, theoretical and practical, where all further curricular developments are set upon.

Not applicable

1. Measurement methods and fundamental definitions - Elementary notions of error, uncertainty, units and standards, result presentation; 2. Fundamental physics notions: - Charge, force, field, potential, current, power and energy; 3.Resistance and power dissipation: -Resistor types, nominal value, tolerance, Joule's law, power dissipation; 4. Power sources: - Electromotive force, power transference; 5. Kirchhoffs' laws; 6. Typical circuit elements: - Voltage and current divisors, combination of sources; 7. Resistive sensors: - Foto-resistances; 8. Equivalent circuits - Norton and Thévenin equivalents; - Star-Triangle transformation; 9. Measuring range: - Increase of a measuring devise range; 10. Alternating functions -Definition, notion of rms value of voltage and current, average power; 11. Capacitors, coils, and first order RC and LC circuits; - Charge and discharge cycles; 12. Oscilloscope and function generator;

Supply of a set of study material, in digital form, namely, slides and exercices. Use of simulation software.

- J. David Irwin, R. Mark Nelms, Basic Engineering Circuit Analysis, 12th Edition, ISBN: 978-1-119-50201-2, Wiley, 2020. - J. A. Brandão Faria, Análise de Circuitos, 3ª Edição, Revista e Aumentada, ISBN: 978-989-8481-50-4, IST-Press, 2023. - Pedro Ramos, Pedro Girão, Instrumentação e Medidas, LIDEL, 2022. - A. S. Morris, R. Langari, Measurement and Instrumentation: Theory and Application, Edition 3, Elsevier, 2020. - Vítor C. Meireles. Circuitos Eléctricos. 5ºEd. Lidel, 2009. - M. Medeiros da Silva, Introdução Aos Circuitos Eléctricos e Electrónicos: 2009, Fundação Calouste Gulbenkian, 4ª ed., 2009.