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JPS5866798

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DESCRIPTION JPS5866798
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a side sectional view of a conventional electronic buzzer, and FIGS. 2 and 6 are side
sectional views of an embodiment of the electronic buzzer according to the present invention. 3,
4 and 5 are diagrams for explaining the operation of the embodiment of the present invention,
FIG. 3 is an equal-node circuit of the vibration system, FIG. 4 is a frequency characteristic of
sound pressure, "5" These are figures which show the temperature characteristic of resonance
frequency. DESCRIPTION OF SYMBOLS 1 ... Lower joint steel, 2 ... magnetic core, 3 ... coil. 10:
Case 11, 11: Patzkin, 12: Second diaphragm, 13: Air chamber, 14: Fixing ring, 15: Piezoelectric
element. z2 figure '1 IJ4 figure
11-05-2019
1
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