JPS5878179U - acoustic transducer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a side sectional view showing an example of a conventional acoustic transducer;
The figure is a rear view of the same, FIG. 3 is a sectional view of the same side showing a state in which a liquid sphere is formed, FIG. 4 is a side sectional view of another example of the conventional acoustic transducer, and FIG. FIG. 6 is a side sectional view showing an embodiment of the acoustic transducer, FIG. 6 is a rear view thereof, and FIG. 7 is a side sectional view showing an atomization pattern according to the embodiment. - 1, IA, IB... acoustic transducer, 2... conical truncated coupler, 3... resonance plate, 4... piezoelectric vibrator,
10...Action surface.

Claims (1)

[Scope of utility model registration request] An ultrasonic vibrating body is constructed by using a coupler having a large end face and a small end face on its central axis with a length smaller than 172 wavelengths, fixing a transducer to the large end face of the coupler, and providing a resonator plate on the small end face. In an acoustic exchanger in which the bending resonance wave number of the resonance plate becomes the resonance frequency of the entire ultrasonic vibration system, and the large end face and the resonance plate both coaxially bend and vibrate, the coupler of the resonance plate is An acoustic transducer characterized in that the active surface on the reflective side is formed into a rough surface with countless unevenness.