Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1997-05-15
2000-01-18
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310312, 310366, 310367, H01L 4108
Patent
active
06016025&
ABSTRACT:
A resonator having piezoelectric properties is tuned to respond at a specific overtone of its parallel plate resonant frequency. A channel is etched in a blank to confine the oscillations to a predefined area thereby maximizing a predetermined overtone. The position and dimension of the channel are selected to confine the oscillation to a radius that maximizes the response at a desired frequency. The desired frequency is a predetermined overtone of the fundamental frequency. The channel limits the area of oscillation of the blank. The channel may be formed using grooves or slots. The slots are arranged to form a ring. The channel may be positioned inside or outside an electrode.
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Arneson Barry A.
Wold Cyle E.
Budd Mark O.
M-Tron Industries, Inc.
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