DocumentCode
1831533
Title
EMFi-New electret material for sensors and actuators
Author
Lekkala, Jukka ; Paajanen, Mika
Author_Institution
VTT Chem. Technol., Tampere, Finland
fYear
1999
fDate
1999
Firstpage
743
Lastpage
746
Abstract
ElectroMechanical Film (EMFi) is a new electret material with a cellular structure. EMFi´s advantage over other solid polymer electrets is based on its flexibility due to the voided internal structure combined with strong permanent charge, which makes EMFi very sensitive to dynamic forces exerted normal to its surface. The base material is low-priced polypropylene (PP). Structure, operation and characterisation of the EMFi material is described. EMFi, which can be applied in various sensors, switches, loudspeakers and special transducers, is patented world wide
Keywords
ageing; electrets; electric sensing devices; piezoelectric actuators; thermally stimulated currents; EMFi; ElectroMechanical Film; actuators; cellular structure; characterisation; dynamic forces; electret material; operation; polypropylene; sensors; solid polymer electrets; strong permanent charge; structure; voided internal structure; Actuators; Biological materials; Chemical sensors; Corona; Electrets; Electrodes; Electromechanical sensors; Manufacturing processes; Permittivity; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on
Conference_Location
Athens
Print_ISBN
0-7803-5025-1
Type
conf
DOI
10.1109/ISE.1999.832151
Filename
832151
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