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JPS5885888

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DESCRIPTION JPS5885888
[0001]
Brief description of the drawings
[0002]
1 and 2 are front and side views showing a first example of a conventional piezoelectric vibrator,
FIGS. 3 and 4 are front and side views showing a second example, and FIG. 5 is FIG. 6 and 7 are a
longitudinal sectional view and a side view showing an example of a piezoelectric vibrator
according to the present invention, FIG. 8 is a connection diagram showing its drive control
circuit, and FIG. 9 is a piezoelectric Signal waveform diagrams for explaining the vibration
operation of the element, FIGS. 10 and 11 are longitudinal sectional view and side view showing
another embodiment of the piezoelectric vibrator according to the present invention, and FIGS.
FIG. 14 is a front view and a side view showing still another embodiment of the piezoelectric
vibrator according to the invention, FIG. 14 is a circuit diagram showing another modification,
and FIG. 15 is a curve for explaining the other modification. . DESCRIPTION OF SYMBOLS 1 ...
Piezoelectric vibrator, 2 ... Drive element, 3.4 .. Drive electrode, 5 ... Detection element, 6 ...
Detection electrode, 8 ... Resistance for detection, 15 ... · Piezoelectric vibrator, 16 · · ·
Piezoelectric element, 17. 18 · · · Drive electrode, 20 · · · Detection electrode, 21 · · · Drive control
circuit, 25 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · drive control circuit, 25 · · · · · · · · · · · · · · ·
· · · · · · · · · · Shift circuit, 27: amplifier. Fig. 7 r----! b 9 @ 兜: i't tt knee +1-20 to 27 $ 6 @ 12 Figure
牟 13
04-05-2019
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