A high-frequency dual-beam directional transducer and its manufacturing method

Abstract

The invention discloses a high-frequency double-beam directional transducer and a manufacturing method thereof. The high-frequency double-beam directional transducer comprises a piezoelectric composite (2) and two electrode wires (4), wherein the piezoelectric composite (2) is of a spherical table structure; the spherical table structure is hollow and the two ends are open; the spherical table structure is formed through bonding a plurality of piezoelectric ceramic small pillars (7) cut from a piezoelectric ceramic circular ring; inner and outer surfaces of the spherical table structure are coated with positive and negative electrodes; one ends of the two electrode wires (4) are separately welded on the positive and negative electrodes; and the other ends of the two electrode wires (4) areled out from the transducer. According to the transducer prepared through the piezoelectric ceramic composite with the spherical table structure, double-beam directivity of the high-frequency transducer can be achieved, ups and downs in beam open angles are relatively small, and the requirement of large-power radiation can be met.

Description

technical field [0001] The invention relates to the field of piezoelectric composite material transducers, in particular to a high-frequency dual-beam directional transducer and a manufacturing method thereof. Background technique [0002] In air acoustic and underwater acoustic detection and imaging equipment, the performance of the transducer often affects the overall performance of the system. When detecting and imaging targets, not only long detection distance and high imaging resolution are often required, but also special directional beam requirements are sometimes required. Sometimes the transducer or matrix is ​​required not only to be able to generate spherical waves, but also to have dual-beam pointing characteristics to meet specific detection or imaging requirements. For high-frequency high-resolution imaging sonar or high-resolution detection equipment, it is often necessary to have high-power emission performance, while for traditional planar arrays, the emiss...

AI Technical Summary

Problems solved by technology

If it is necessary to form a small-volume piezoelectric vibrator ball table, it is difficult to achieve it with ordinary manufacturing techniques, and special techniques must be used to achieve it.

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