Bidirectional multistage parallel bent disc transducer

Abstract

The invention relates to the technical field of transducers, and provides a bidirectional multistage parallel bent disc transducer. The transducer comprises a first radiation cover plate and a secondradiation cover plate which are oppositely arranged, wherein the first radiation cover plate is provided with a first radiation end, and the inner side of the first radiation end is provided with a first telescopic column; a second radiation end opposite to the first radiation end in radiation direction is arranged on the second radiation cover plate, and a second telescopic column is arranged onthe inner side of the second radiation end; the first telescopic column and the second telescopic column are each connected with a plurality of sets of metal bent discs in series in the axial direction, the piezoelectric ceramic pieces are arranged on the metal bent discs, and the outer edges of the adjacent metal bent discs are connected in the axial direction. The metal bending disc of the transducer adopts a driving mode of multi-stage parallel piezoelectric bending discs, and compared with a transducer in the prior art, the transducer has higher power capacity and higher compression strength under the condition of the same frequency.

Description

technical field [0001] The invention relates to the technical field of transducers, in particular to a bidirectional multi-stage parallel curved disk transducer. Background technique [0002] With the technological breakthroughs of underwater acoustic systems and equipment year by year, the application scenarios and importance of underwater acoustic systems have gradually increased. The new underwater power contest requires underwater acoustic systems to focus on solving problems such as long-distance communication, low-noise target recognition, and low-echo characteristic target detection. The low-frequency underwater acoustic system is an important direction for the development of underwater forces. [0003] As the key technology of low-frequency underwater acoustic system, low-frequency transducer technology has two important development directions: [0004] One is the application of low-frequency and high-power broadband. Its goal is to radiate low-frequency sound ener...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: in order to overcome the deficiency that the low-frequency transducers in the prior art cannot take into account the effect of frequency and strength, the present invention provides a bidirectional multi-stage parallel curved disk transducer, which has the advantages of miniaturization, light weight Quantization, high power, high pressure resistance characteristics

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