39475 - Eletronic Bioengineering Applied To Prosthesis

Learning outcomes

At the end of the module, the student has the basic knowledge of the physical principles and technologies used in electronic devices in the prosthetic world: sensors, microprocessor architectures, knowledge for data processing and filtering. The student will have knowledge of batteries, actuators, transducers present in prosthetic systems and the basics of communication protocols between PC and Prosthesis. The student acquires the basic knowledge of a closed-loop and open-loop control system and learns to create simple control algorithms by implementing them on microprocessor systems.

Course contents

THEORY

Recall of mathematical physics and electrical engineering

Numbering systems, constant and variable quantities over time
Fourier series development
Resistance, resistivity, series, parallel, color code
Capacitance, parallel, series
Inductance, series, parallel
Real and ideal components

Recall of electronics

Diodes, LEDs, BJTs, MOS, Optoisolators
Amp.Op
Gain, Band, Ring, Rout, CMRR
Configuration invert. non invert. Differential
Technological aids, Design for all, ICF

Actuators:

Electric motors
Relays
Servomotors
Thermal actuators
Microcontroller

CU, RAM, FLASH, IO, ADC, DAC, PWM
Shannon theorem
Motor control and H-BRIDGE
Filters

Digital
Analog
Signal transmission

Serial and Parallel
BIT/BAUD RATE
RS232, USB, Wi-Fi, Bluetooth, Zig-Bee
Sensors

Force and pressure
Strain gauges
Non-strain gauges
Capacitive
Inertial
Position
Inclination
Absolute and relative angular position, encoder
Temperature: thermoresistances, thermocouples, thermistors
Notions of automatic controls and Open loop and closed loop control
Reliability of an electronic system
Batteries and accumulators
Recalls on EMG and Target Muscle ReInnervation

Prosthetics, Bionics, Robotics

Polyarticulated Prostheses and Control Techniques

Sensory Feedback

Assistive Technologies and Evaluation Systems

Fundamentals of Home Automation

LABORATORY

Electrical and resistance measurements
Tests with motors in speed and torque
Use of an oscilloscope and verification of signals
Tests with sensors (measurement of an angular position, of a pressure)
Polarization tests of a LED
Welding tests of electrical components on a small board
Use of Arduino: Flashing of a LED - LED with buttons (and – or)
Use of Arduino: Reading the value of a potentiometer or FSR - Sending data with serial LED control with PWM
Creation of a control for a myoelectric prosthesis

"The teaching participates in the didactic experimentation project of the University"

Readings/Bibliography

Lecture slides and numerous scientific publications are provided. The material is given to students during the lessons

Teaching methods

Frontal lessons with the use of video and interactive digital methods and laboratory exercises. Depending on availability, visits to external institutions/companies may be included.

"The teaching participates in the University's educational experimentation project"

Assessment methods

L'esame si articola in tre prove:

• Prova pratica individuale,
• Tesina scritta individuale o Progetto individuale o di gruppo con discussione,
• esame individuale orale.

Teaching tools

During the course, commercial prosthetic devices and prototypes will be used. For the technological aids part, the computer and home automation aids laboratory of the INAIL Prosthetics Center will be used.

Office hours

See the website of Angelo Davalli