Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JPS55162490 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing the structure of a conventional ultrasonic transducer, FIG. 2 is a sectional view showing the structure of an ultrasonic transducer according to the present invention, and FIG. It is an expansion half sectional view of a sound wave vibrator. 8 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ultrasonic transducer, 12 · · · · throat. DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ultrasonic transmitter-receiver which comprises an ultrasonic transducer and a horn, and more particularly to the improvement of horn picking. Conventionally, the constitution shown in FIG. 1 has been adopted as a liquid transmitter or receiver of a supersonic 1 anti-switch which is frequently used as a door switch or a level switch. More specifically, 1 is a horn integrally formed of synthetic resin, and (1) 71,211 P ρ diameter gradually increases from the throat portion 2 toward the opening portion 5 and a cylindrical copy circle is further formed on the throat portion 2) The ultrasonic vibrator 6 is fitted to the vibrator mounting portion 4 from above with the elastic member 5 interposed therebetween, and the terminal 7 is led out to the lower periphery and the lower part of the ultrasonic vibrator 6. 7 rubber yarn cherry, a agent is filled and fixed. This ultrasonic transducer 6 is. While attaching a piezoelectric element to the inside of the upper bottom of a cylindrical cap with a bottom and closing the open bottom with a disk-shaped base, j is a vibrating surface and 9 The circumferential side also vibrates in the radial direction, and from this point as well, there is a feature that sum acoustic waves are generated. Therefore, with this conventional structure, is the sum siding wave generated on the circumferential side of the former not used at all? There is a defect that interferes with the ultrasonic waves from the top and bottom toward the object, resulting in vibration loss and actually reducing the back pressure of the ultra-speaking wave toward the object, so-called efficiency as a transmitter or receiving liquid The sensitivity of the vessel was low. This device was made in view of the above points, 02-05-2019 1 and the purpose is to reflect the side vibration as well as the @ surface vibration of the ultrasonic transducer to (2) and efficiently utilize the ultrasonic wave. It is. For this purpose, this invention is designed to fix the fixed base of the ultrasonic transducer at the throat if relieved. Due to this configuration, the Tochigi device transmits the ultrasonic waves that are emitted in the radial direction of the wave S motion or not as a vibration loss, but they are used as effective ultrasonic waves because they are reflected by the radiation surface of the horn. It has the effect of improving the sensitivity as an i-conversion rate as a receiver or as a receiver. Hereinafter, an embodiment of the present invention will be described. FIG. 2 shows an example of the ultrasonic transducer according to the present invention. The horn 8 integrally molded by 9 synthetic trees is directed from the throat 12 to the opening 13 at the tip. As the diameter gradually increases, a cylindrical vibrator attachment portion 29 having a diameter larger than the diameter of the throat 12 is connected to the throat 12 and penetrates from the opening 16 to the proximal end . An ultrasonic transducer 9 having a diameter slightly smaller than that of the throat portion 120 is attached to the horn 8. (6) As shown in FIG. 3, the sound wave perturbator 9 adheres the piezoelectric element 16 to the inside of the upper bottom surface of the bottom cylindrical cap 15 made of aluminum or the like, and the lower edge thereof Are bonded to the ring-shaped base 18 via the elastic material 17 of the sponge temple, and the terminals 19. The opening is closed by the terminal block 20 on which the '19 is erected, and when a high frequency voltage is applied between the electrodes 41 attached on both sides of the piezoelectric element 16, the piezoelectric element is used. It vibrates integrally with the cap 15 to generate an ultrasonic wave. Further, as described above, ultrasonic waves are emitted in the radial direction also from the surface of the cap 15. On the other hand, it is assembled so as to be opposed to the throat 12 of the base 20r horn 8 of the ultrasonic wave vibrator 9 and 9 is assembled. The entire surface of the back is filled with a resin such as a rubber adhesive or silicone rubber to fix the filter. Accordingly, the surface of the ultrasonic transducer 9 faces the radiation surface 10 of the horn 8 at a predetermined angle. The light 7 emitted from the side is reflected by the radiation surface 10 and emitted toward the @ 1 surface of the horn 8. (4) A large power can be obtained as the efficiency of the wave transmitter or the sensitivity of the wave receiver. In this embodiment, the vibrator 9 and the horn 8 are fixed with a resin such as silicone rubber, or the base 20 of the vibrator 9 is pressed from the lower portion of the horn 8 with a beta plate or the like. You may fix this with a his. 02-05-2019 2
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