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Stretchable piezoelectric transducer array sound wave receiving end and receiving system

A technology of piezoelectric transducer and array sound wave, which is applied in the direction of piezoelectric/electrostrictive transducer microphone, ultrasonic/sonic wave/infrasonic wave transmission system, transmission system, etc. Acoustic signal attenuation and other issues, to achieve the effect of increasing the available frequency bandwidth and increasing data transmission capacity

Inactive Publication Date: 2019-11-15
吕舒晗
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  • Abstract
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Problems solved by technology

[0003] Limited by the structural design of the acoustic wave receiving array in the prior art, the received acoustic wave signal has been greatly attenuated, which directly leads to insufficient freedom of spatial signal transmission of the acoustic wave, and the available frequency bandwidth in the same frequency band is relatively low

Method used

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  • Stretchable piezoelectric transducer array sound wave receiving end and receiving system
  • Stretchable piezoelectric transducer array sound wave receiving end and receiving system
  • Stretchable piezoelectric transducer array sound wave receiving end and receiving system

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Embodiment Construction

[0022] The following part will further illustrate the technical solution in conjunction with the accompanying drawings and specific implementation examples. By referring to the exemplary embodiments, the technical problems, technical solutions and advantages of the present invention will be clarified. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.

[0023] figure 1 It is a structural diagram of the sound wave signal processing function of the sound wave receiving system. The acoustic wave receiving system includes: a receiving array element 11 , an amplifier 12 , a filter 13 , an acquisition unit 14 , a storage unit 15 and a calculation unit 16 . The sound wave signal is converted into a voltage signal by each receiving element 11, and th...

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Abstract

The invention relates to a stretchable piezoelectric transducer array sound wave receiving end and a receiving system. The receiving end comprises a concave spherical support substrate; a sound wave receiving array composed of a plurality of piezoelectric transducer array elements and arranged on the concave spherical surface of the supporting substrate, and an elastic stretchable connecting lineis arranged between every two adjacent array elements; and the plurality of piezoelectric transducer array elements are connected in parallel. According to the wave receiving end and the wave receiving system, the sound wave can perform data transmission by utilizing extra spatial freedom degree, the data transmission capability of the sound wave is improved, and the available frequency band widthin the same frequency band is improved.

Description

technical field [0001] The invention relates to the field of acoustic piezoelectric transducers, in particular to a stretchable piezoelectric transducer array acoustic wave receiving end and a receiving system. Background technique [0002] Due to the popularization of multimedia information, the coverage of data content is becoming wider and wider, including text, pictures and sound, so sound wave communication is becoming more and more important. However, the lower carrier frequency of acoustic waves greatly limits the spectral bandwidth and data rate of data transmission. While spectral efficiency has been improved by advanced communication techniques such as differential phase-shift keying (PSK) and quadrature amplitude modulation (QAM), the number of available data transmission channels is still tied to low carrier frequencies. [0003] Limited by the structural design of the acoustic wave receiving array in the prior art, the received acoustic wave signal has been gre...

Claims

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Application Information

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IPC IPC(8): H04B11/00H04R17/02H04R1/40
CPCH04B11/00H04R1/406H04R17/02
Inventor 吕舒晗杜依诺张宝军
Owner 吕舒晗
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