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A Flexible Thin Film Acoustic Vector Sensor Based on Nanomaterials

A sound vector sensor, flexible film technology, applied in instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc., to achieve the effects of simple operation, good stability and low cost

Active Publication Date: 2021-01-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of flexible sensors to detect sound has rarely been studied in this field.

Method used

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  • A Flexible Thin Film Acoustic Vector Sensor Based on Nanomaterials
  • A Flexible Thin Film Acoustic Vector Sensor Based on Nanomaterials
  • A Flexible Thin Film Acoustic Vector Sensor Based on Nanomaterials

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Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Such as Figure 1-5 as shown,

[0041] A flexible thin-film acoustic vector sensor based on nanomaterials, comprising: a flexible thin-film structure, a conductive nanomaterial unit 1, electrodes, and a rigid bottom plate with holes 2;

[0042] The flexible membrane structure includes an outer ring 3, an inner mass block 4 and several beams 5, and the outer ring 3 and the inner mass block 4 are connected by the beams 5; The outer ring 3; the upper part of the beam 5 is provided with a fixed end of the first electrode 6 and a fixed end of the second electrode 7, and the upper part of the fixed end of the first electrode 6 and the fixed end of the second electrode 7 is covered with a conductive nanomaterial unit 1. The lead-out end of the first electrode 6 is led out from the upper part of the rigid base plate 2 , and the lead-out end of the second electrode 7 is drawn out from the lower part of the rigid base plate 2 .

[0043] Such as Figure 5 As shown, each of the ...

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Abstract

The invention discloses a flexible film sound vector sensor based on nanometer material. The sensor comprises an outer ring structure made of flexible film, beams, mass blocks, conductive nano-material, electrodes, and a perforated rigid bottom plate. According to the flexible film sound vector sensor based on nanometer materials, by means of the piezoresistance characteristic of the conductive nano-material, the change of the resistance of the conductive nano-material is converted into a voltage change through a connecting circuit, the voltage change frequency and the measured voltage changeamount on each beam is observed, and the frequency of the sound source and the position and the distance of the sound source are analyzed. The invention realizes the detection of sound frequency, distance, and azimuth by using the flexible film sensor; the sensor is simple in operation, low in cost, good in stability, and can be widely applied to the field of sound vector information detection.

Description

technical field [0001] The invention relates to a flexible film acoustic vector sensor based on nanometer materials, which belongs to the technical field of flexible sensor manufacturing. Background technique [0002] With the development of flexible matrix materials, flexible sensors emerge as the times require. Flexible sensors have the characteristics of flexibility, extension, freedom to bend or even fold, easy to carry, and wearable. According to the application, it can be divided into flexible pressure sensor, flexible gas sensor, flexible humidity sensor, flexible temperature sensor, flexible strain sensor, flexible magnetic impedance sensor and flexible thermal flow sensor, etc.; according to the sensing mechanism, it can be divided into flexible resistive sensor, flexible capacitor sensor, flexible piezomagnetic sensor and flexible inductive sensor, etc. [0003] The structure of the flexible sensor is flexible and diverse, and can be arranged arbitrarily accordin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H11/06
CPCG01H11/06
Inventor 张强桑胜波季超禚凯袁仲云张虎林冀健龙张文栋
Owner TAIYUAN UNIV OF TECH