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JPS5885884

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DESCRIPTION JPS5885884
[0001]
Brief description of the drawings
[0002]
Fig. 1 is a side view showing a state in which the piezoelectric element 5 is adhered to the
diaphragm 4, Fig. 1 is a partially cutaway plan view of the diaphragm 4, and Fig. 3 is a graph of
frequency characteristics measurement of the conventional metal diaphragm. FIG. 4 is a
frequency identification graph of the diaphragm of the present invention. 1 → reinforced epoxy
resin sheet, 2 → glass fiber cloth, 3 → copper material film, 4 → diaphragm, 5 → piezoelectric
element, 6 ° 7 → silver electrode, 8, 9 → lead wire.
11-05-2019
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