Unlock instant, AI-driven research and patent intelligence for your innovation.

Double-end slotted piezoelectric ring water sound transmitting transducer

A technology of transmitting transducers and rings, applied in piezoelectric/electrostrictive transducers, transducers used underwater, piezoelectric/electrostrictive transducers resonant transducers, etc. It is difficult to solve the problems of cylindrical underwater communication equipment, etc., to achieve the effect of simple structure, lower operating frequency and lower vibration frequency.

Active Publication Date: 2021-06-11
HARBIN ENG UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current low-frequency underwater acoustic emission transducers mainly use curved disc structures and bending-tension structures to achieve low-frequency acoustic emission. Acoustic communication nodes and other cylindrical underwater communication equipment, so it is necessary to develop an underwater acoustic emission transducer with a circular structure that uses bending vibration to emit low-frequency sound waves underwater

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double-end slotted piezoelectric ring water sound transmitting transducer
  • Double-end slotted piezoelectric ring water sound transmitting transducer
  • Double-end slotted piezoelectric ring water sound transmitting transducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] Such as Figure 1-Figure 10 As shown, a double-ended slit piezoelectric ring underwater acoustic emission transducer includes a piezoelectric ring, and several longitudinal slits 4 are arranged at the upper and lower ends of the piezoelectric ring, and some longitudinal slits 4 at the upper end Slits are arranged opposite to several longitudinal slits at the lower end one by one. The depth and width of all the longitudinal slits 4 are the same, and the depth of the longitudinal slits 4 is 20%-30% of the length of the piezoelectric ring. The width of the slit 4 accounts for 5%-10% of the length of the circumference of the end where it is located. Under the excitation of sinusoidal...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a double-end slotted piezoelectric circular ring underwater sound transmitting transducer which comprises a piezoelectric circular ring, a plurality of longitudinal slots are formed in the upper end and the lower end of the piezoelectric circular ring, the longitudinal slots in the upper end and the longitudinal slots in the lower end are arranged in a one-to-one opposite mode, and the depths and the widths of all the longitudinal slots are the same. The depth of the longitudinal slots is 20%-30% of the length of the piezoelectric ring, the width of the longitudinal slots at each end accounts for 5%-10% of the length of the circumference of the end part, and the piezoelectric ring generates a double-end bending vibration mode under the excitation of sinusoidal voltage. The double-end slotted piezoelectric circular ring water sound transmitting transducer can be applied to cylindrical underwater communication equipment such as water sound communication nodes and the like, double-end bending vibration of the piezoelectric circular ring is realized, and low-frequency sound wave transmission is realized.

Description

technical field [0001] The invention belongs to the technical field of underwater acoustic transducers, in particular to a double-end slit piezoelectric ring underwater acoustic emission transducer. Background technique [0002] Sound waves are currently the best way for underwater long-distance information transmission. The higher the frequency of the sound wave, the greater the absorption loss of the water medium to the sound wave, and the closer the sound wave travels. For underwater acoustic communication, in order to carry out long-distance transmission of information in the water medium with sound waves as the carrier, the underwater acoustic emission transducer must have the characteristics of low-frequency sound wave emission. At present, the ring-type underwater acoustic emission transducer is the most widely used in underwater acoustic communication equipment. Whether this type of underwater acoustic emission transducer is constructed with a radially polarized rin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/44H04R17/10H04B11/00H04B13/02
CPCH04R1/44H04R17/10H04B11/00H04B13/02H04R2217/00
Inventor 卢苇蓝宇
Owner HARBIN ENG UNIV