Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1991-08-09
1992-10-27
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310800, 310340, H01L 4108
Patent
active
051592282
ABSTRACT:
An ultrasound sensor has a piezoelectric foil polarized in at least in one region, a signal electrode arranged at one side of the piezoelectric foil, and comprises a shell electrode arranged at the other side of the piezoelectric foil. The piezoelectric foil, the signal electrode and the shell electrode are component parts of a multilayer structure wherein the signal electrode and the shell electrode are separated from the piezoelectric foil by a dielectric coupling layer, and the signal electrode and the polarized region of the piezoelectric foil overlap in a region forming a pressure-sensitive sensor surface.
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Budd Mark O.
Siemens Aktiengesellschaft
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