Relatório de estágio integrado - Laboratório de Engenharia da Produção Artística.

Abstract

Effort Return Systems are used on several engineering areas with the objective of simulation, for example, of nanoparticles’ behavior, acoustic pianos and some materials’ texture. The conception of these systems requires a lot of delicacy, since the system must be smooth and any noise can result in a very different system from the simulated one. This work was developed at ACROE-ICA Laboratory (Association pour la Création et la Recherche sur les Outilsd’Expression- Ingénierie de la Création Artistique) with the propose of studying three different problems of an Effort Return System called TDR (Transducteur Gestuel Rétroactif - Retroactive Gestural Transducer) crosstalk, audible noise and the amount of power dissipation. In order to solve these problems, two crucial components were studied: the system’s power supplies and amplifiers. Linear and switched power supplies, as well as a D-class audio amplifier were tested. After a lot of tests, it was possible to conclude that the linear power supply presents a better result for some applications, although it is a lot bigger than switched power supplies. D-class amplifiers presented less power loss for the system.