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Brief description of the drawings
1 and 2 are sectional views showing a conventional example. FIG. 3 is a sectional view showing
an example of a probe using a conventional example, FIG. 4 is a sectional view showing another
conventional example, and FIG. 5 is a perspective view showing an embodiment of the present
invention applied to a square vibrator. FIG. 6 is a sectional view taken along the line VI-VI in FIG.
5, FIG. 7 is a sectional view showing another embodiment, and FIG. 8 is an embodiment in which
the present invention is applied to a circular vibrator And FIG. 9 is a cross-sectional view taken
along the line IX-IX of FIG. DESCRIPTION OF SYMBOLS 10 ... Piezoelectric element, 11.12 ...
Electrode surface, 11A, 12A ... Folded electrode part, 15.16 ... Lead wire.