Piezoelectric acceleration pickup with a polymer transducer...

Details Piezoelectric acceleration pickup with a polymer transducer... Piezoelectric acceleration pickup with a polymer transducer...

G - Physics

01

P

349/3, 73/67

G01P 15/09 (2006.01) B04B 7/06 (2006.01)

Patent

CA 1144391

ABSTRACT OF THE DISCLOSURE Piezoelectric acceleration pickup incorporating a transducer film made from a polymer material which, after treatment, has piezoelectric properties, two electrodes and a seismic mass provided by an excrescence on the polymer film, the assembly being obtained in one operation by moulding. According to a second variant, the pickup is in the form of an elongated object obtained by moulding a polymer material and in which are embedded two facing planar electrodes, the polymer material between these two electrodes constituting the transducer member and the material above these electrodes constituting the seismic mass.

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