Instrumentation and Control

Code:

MEMG0011

Acronym:

IC

Keywords
Classification	Keyword
OFICIAL	Technology and Applied Sciences
OFICIAL	Mathematics

Instance: 2022/2023 - 1S

Active?	Yes
Responsible unit:	Mining Engineering Department
Course/CS Responsible:	Master in Mining and Geo-Environmental Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
M.EMG	5	Plano de estudos oficial a partir de 2008/09	2	-	6	45,5	162

Teaching language

English
Obs.: Português se todos os estudantes forem falantes da língua portuguesa.

Objectives

There are five fundamental aims:
1) Knowledge: Recall basic concepts related to the resolution of ordinary differential equations using the Laplace Transform;
2) Comprehension: Recognize and explain the behavior of simple paradigmatic systems; create models for systems with a typical behavior; to explain the physical foundation of sensors. To know how to select valves adjusted to their function in a closed loop control system.
3) Application: To recognize model structures and infer the relevant parameters from the experimental behavior;
4) Analysis: To use the dynamic simulation as a tool for comprehension and action on the process; 5) Synthesis: To distinguish and elaborate paradigmatic control strategies. Evaluation: To evaluate the behavior of a control loop and its field of stability.

Learning outcomes and competences

Characteristics of control systems by feedback, feedforward and feedback corrected by feedforforward. 
Dynamic simulation of simple systems; 
Understanding of typical behavior of overall control loops in a closed control circuit. Understanding of physical principles underlying the main sensors.
Control strategies in the mining industry.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Required prior knowledge: linear differential equations and Laplace transform.

Program

UNIT I - INSTRUMENTATION: Alarms. Physical conception of the main sensors: weight, level, flowrate, density, percentage of solids in a pulp, temperature, grain size, composition and acoustic control of grinding intensity. The actuators. The control room and the main equipment (analogical and digital with short reference to pneumatic equipment).
UNIT II – INTRODUCTION TO CONTROL THEORY: The process, the system and the model. Integral Transforms. External description: Transfer function (or transmittance). Transmittance as the Laplace transform of the impulsional response. Behaviour of systems of 1st order. Non-linear systems and linearization. Systems of 2nd order. The feedback control loop. Stability: algebraic criteria and frequential analysis. Feedforward control. Introduction to MIMO systems: interactions.
UNIT III - SIMULATION – Utilization of MATLAB and its module for simulation of control systems. Application to the main problems referred in module I.

Mandatory literature

António Fiúza; Instrumentação, FEUP, 2010

Complementary Bibliography

António Fiúza; Teoria do Controlo, 2010
Dale E. Seborg; Process dynamics and control. ISBN: 0-471-00077-9

Teaching methods and learning activities

Theoretical-practical classes for the presentation of fundamental concepts related to control theory, instrumentation and strategies. Practical classes of paradigmatic exercises using a transfer function approach.

Software

Matlab

keywords

Technological sciences > Engineering > Control engineering > Automation

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Teste	80,00
Trabalho prático ou de projeto	20,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	85,00
Frequência das aulas	52,00
Elaboração de projeto	25,00
Total:	162,00

Eligibility for exams

To obtain attendance students will have to be present in at least 75% of the all taught classes .

Calculation formula of final grade

NF= 0,30 * T1 + 0,50* T2 + 0,20 * NT

where:
NF - Final mark; T1 - 1st test mark; T2 - 2nd test mark;NT - work mark

Examinations or Special Assignments

No special works will be performed.

Internship work/project

Not applicable.

Special assessment (TE, DA, ...)

Students with special status, in addition to the evaluation required of regular students, can take a global exam on all the subjects taught during a special exam period.

Classification improvement

In a final exam covering all the subjects taught.
Isolated components of the distributed assessment can subject to improvement of classification.

Observations

Possible changes to the forecast may occur, following the development of the pandemic situation.