Sleep and Sensory Analysis Group - Sensing everything between heaven and earth
Sleep and Sensory Signal Analysis Group

Examples of our studies

Sleep analysis
Epilepsy analysis
Measurement chair
Sensing the human
Tablet interface
Other user interface studies
Engine signal processing
Health informatics standardisation
Secret company projects
Ancient web history

Doctoral theses

Engine signal processing

An engine
An engine is a challenging environment for sensors
Ecology to maritime traffic

The rising prices of fuels give more and more causes to increase the efficiency of engines for all purposes. At the same time tightening environmental rules concerning the emissions of harmful burning products set new goals to improve the burning processes in engines, for example in ships.

Energy efficiency and the type of emissions can be improved by better control of the engines. This requires that the engine ignition process, fuel and air intake are controlled in real time based on sensory input and the power production target.

Various sensors can be attached to an engine to derive information about its operation condition and the combustion process. These include sensors for vibration, pressure, valve opening, crankshaft position, ignition current etc. Each sensor has its signal-to-noise ratio and its signal processing has to be adapted to it.

Engine control, Wikipedia
Diesel engine, Wikipedia
Hercules-B project
E-mail to Alpo.Varri (at)
Designed by Alpo Värri 28.1.2013
Department of Signal Processing Tampere University of Technology
P.O. Box 553, FI-33101 Tampere, Finland, Tel. +358-40-8490780
Sailing on open seas should also be more environment friendly