Deep-water ultra wide band spherical transducer

Abstract

The invention relates to a deep-water ultra wide band spherical transducer. The transducer comprises a piezoelectric ceramic ball (1), a watertight layer (4), a punched bolt (7), a decoupling pipe (8), a cable head (10) and a pressure-proof shell and is characterized in that two guide wire holes are vertically arranged on the piezoelectric ceramic ball (1) along a vertical center shaft, and isolation areas uncoated with silver coating are arranged on the inner surface and outer surface of the piezoelectric ceramic ball (1) along the circumferences of the two guide wire holes to form two independent hemispherical electrodes. The punched bolt (7) penetrates through the piezoelectric ceramic ball (1) along the guide wire holes, a guide wire led out of the bottom of the punched bolt (7) is respectively in electric connection with silver coatings on the outer surfaces of the two hemispherical electrodes, and a guide wire led out of the lateral side of the upper portion of the punched bolt (7) is respectively in electric connection with silver coatings on the inner surfaces of the two hemispherical electrodes. The deep-water ultra wide band spherical transducer is provided with extremely wide working bands and certain directivity.

Description

technical field [0001] The invention relates to the field of acoustic detection, in particular, the invention relates to a deep-water ultra-wideband spherical transducer. Background technique [0002] Acoustic transducers are called the nerves of acoustic instruments. They have very important applications in underwater acoustic detection, oil exploration and other fields. The stability of the performance of the transducer directly determines the stability of the performance of the entire acoustic system, and the quality of the performance directly determines The whole instrument system is good or bad. However, the transducer often needs to be directly exposed to harsh environments, and it is the most vulnerable part of the entire instrument. Taking transducers for deep-sea exploration as an example, the average depth of the ocean on the earth reaches more than 3,700 meters, and the depth of the deepest place reaches more than 11,000 meters. If the transducer works at the av...

AI Technical Summary

Problems solved by technology

However, with the development of synthetic aperture technology, high-resolution imaging technology, underwater communication technology, broadband interference technology, etc., the bandwidth of one octave can no longer meet the needs of the project. In order to further expand the bandwidth, technicians must It is realized without using more mode coupling, such as longitudinal vibration-flexural tension-matching layer coupling, etc.

The multi-modal design will lead to a more complex structure of the transducer, more uncontrollable factors in the design process, and higher and higher design costs

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