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Dish type transmitting transducer

A technology of transmitting transducer and dish type, which is applied in the direction of sound-producing equipment, instruments, etc., can solve the problems of insufficient power capacity of V-shaped flextensional transducer, difficult manufacturing process, and low space utilization rate, etc. The effect of utilization rate, full use of space, and convenient operation

Inactive Publication Date: 2007-12-26
PEKING UNIV
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AI Technical Summary

Problems solved by technology

[0014] The present invention overcomes the large low-frequency size and low efficiency of the longitudinal vibration mode transducer (including the annular transducer), the insufficient power capacity of the V-shaped flexural transducer, the low space utilization rate, and the relatively difficult manufacturing process In view of the disadvantages, a dish-shaped transmitting transducer is proposed. The dish-shaped transmitting transducer has the characteristics of compact structure, small size, low frequency, large power capacity, high transmission efficiency and high response to transmission voltage, and the manufacturing process is relatively simple.

Method used

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Embodiment Construction

[0045] Referring to Fig. 6, Fig. 7 and Fig. 8, the present invention implements a low-frequency, small-sized, high-power transmitting transducer with a disc shape and high transmitting voltage response. The transducer includes: a star-shaped combination driver composed of a central support block 1, N (N≥3) driving arms 2 in longitudinal vibration mode, and a ring-shaped connector 3, and two flat-topped conical or spherical shells 4. The annular connecting piece 3 and the two casings 4 are tightly fixed and connected with glue or bolts, and the radial vibration of the annular connecting piece of the star combination driver is used to drive the casing and excite the bending vibration mode of the casing; the casing is used as the radiation surface Radiation of sound waves in a medium.

[0046] Realize the specific technological process of transmitting transducer of the present invention as:

[0047] (1) The central support block 1 is made of N (N ≥ 3) polygonal metal with a cert...

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Abstract

An emission energy-converter of butterfly type is prepared for firm-jointing circular connection element of star-form combined actuator closely with two shells, utilizing longitudinal vibration mode of driving arm to generate radial vibration of circular connection element and to excite bend vibration mode of excitation shell as well as to use shell as radiation surface to radiate sound wave into media.

Description

[0001] technical field [0002] The invention belongs to the technical field of underwater acoustic transducers, and in particular relates to a dish-shaped emitting transducer. The transducer can be applied in the fields of low-frequency active sonar (LFAS), long-range underwater acoustic communication, submarine acoustic tomography, exploration and development of marine resources, and the like. Background technique [0003] The 21st century is the century of the ocean. Sound waves are the only information carriers capable of traveling long distances in the ocean. In the military field, acoustic methods are the main means of underwater target detection, positioning, identification, navigation, and communication; in the civilian field, acoustic methods play a pivotal role in offshore oil and natural gas resource exploration and submarine formation imaging. [0004] With the development of target stealth technology, traditional passive sonar is losing its dominant position. Lo...

Claims

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Application Information

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IPC IPC(8): G10K9/122G10K9/128
Inventor 李朝晖黄爱根栾桂冬张金铎
Owner PEKING UNIV
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