Title :
Modelling the sensor and actuator operations of the ElectroMechanical Film EMFi
Author :
Paajanen, Mika ; Välimäki, Hannu ; Lekkala, Jukka
Author_Institution :
VTT Chem. Technol., Tampere, Finland
Abstract :
The ElectroMechanical Film (EMFi) is a thin, cellular, biaxially oriented polypropylene film coated with metal electrodes. Elementary models with one air gap structure have been previously proposed to describe the EMFi´s operation as a sensor and as an actuator. In this work a model based on a multiple air gap structure is presented and shown to reduce into a model with one air gap. The models are based on charge layers on the polypropylene/air interfaces and on the film´s surfaces. The models are evaluated with some experimental results
Keywords :
electrets; electric sensing devices; modelling; piezoelectric actuators; polymer films; actuator operations; biaxially oriented polypropylene film; charge layers; electromechanical film EMFi; metal electrodes; modelling; multiple air gap structure; polypropylene/air interfaces; sensor operations; Actuators; Biological materials; Chemical sensors; Chemical technology; Dielectric constant; Electrodes; Electromechanical sensors; Equations; Gaussian processes; Voltage;
Conference_Titel :
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-5025-1
DOI :
10.1109/ISE.1999.832149
