A biomimetic device for simulating vocal cord vibration using double-stacked transducers

A technology of vocal cord vibration and double lamination, which is applied in the field of bionic research of physical models, can solve the problems that the vibration characteristics of vocal cords and the sounding mechanism cannot be well revealed, and achieves the effect of simple structure and convenient operation.

Inactive Publication Date: 2015-10-28
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above-mentioned vocal cord theory of a single state of matter cannot well reveal the vibration characteristics and vocalization mechanism of the vocal cords.

Method used

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  • A biomimetic device for simulating vocal cord vibration using double-stacked transducers
  • A biomimetic device for simulating vocal cord vibration using double-stacked transducers
  • A biomimetic device for simulating vocal cord vibration using double-stacked transducers

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Experimental program
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Effect test

Embodiment 1

[0021] The bionic device for simulating the vibration of the vocal cords in this embodiment is composed of a simulation box 1, a left muscle simulation layer 2, a first double laminated ultrasonic transducer 3, an upper screw 4, an excitation power supply 5, and a second double laminated ultrasonic transducer 6. The right muscle simulation layer 7 and the lower screw rod 8 are connected.

[0022] see figure 1 and 2 , the analog box 1 of the present embodiment is a rectangular box made of rubber material, with a length of 40mm, a width of 50mm, and a height of 20mm. The adhesive is bonded with a left muscle simulation layer 2, and the left muscle simulation layer 2 is composed of two lateral muscle simulation blocks 2-1 and an inner muscle simulation block 2-2 bonded side by side in the horizontal direction. Block 2-1 is made of a density of 0.8g / cm 3 Made of solid silicone rubber material, the inner muscle simulation block 2-2 is made of a density of 1.12g / cm 3 It is made ...

Embodiment 2

[0027] In the present embodiment, the left muscle simulation layer 2 and the right muscle simulation layer 7 are composed of 3 layers of muscle simulation blocks bonded side by side in the horizontal direction, and the outer muscle simulation block 2-1 is made of a density of 0.8g / cm 3 Made of solid silicone rubber material, the middle muscle simulation block is made of a density of 0.95g / cm 3 Made of solid silicone rubber material, the medial muscle simulation block 2-2 is made of a density of 1.2g / cm3 It is made of solid silicone rubber material, that is, the density of the outer muscle simulation block 2-1 is greater than that of the middle muscle simulation block, and the density of the middle muscle simulation block is greater than that of the inner muscle simulation block 2-2. The geometric shape of each muscle simulation block is a trapezoidal platform structure with the upper and lower bottom surfaces vertically arranged. The upper bottom surface of the outer muscle sim...

Embodiment 3

[0029] In the present embodiment, the left muscle simulation layer 2 and the right muscle simulation layer 7 are made of a density of 1.1g / cm 3 It is made of solid silicone rubber material, and its geometric shape is a cuboid structure with the upper and lower bottom surfaces vertically arranged. Other parts and their connection relations are the same as in embodiment 1.

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Abstract

The invention provides a bionic device for simulating vocal cord vibration by utilizing double-lamination transducers. A simulation box is used for simulating a vocal track cavity. Left and right muscle simulation layers in the simulation box and first and second double-lamination transducers between the left and right muscle simulation layers vibrate are utilized to simulate the vocal cord vibration and drive muscles to act to hinder the stretching and the vibration of a vocal cord to simulate the sound production of human vocal cords in different states, the lengths of the piezoelectric ceramic transducers are regulated to simulate the vibration of different human vocal cords and the vibration of vocal cords with pathological changes, and the amplitude of alternating current voltage is regulated to simulate the vibration of the vocal cords for producing high-pitched sounds or low-pitched sounds, so that the vibration of the vocal cords under different vibration frequency and different vibration amplitude is simulated, and vocal cord structures are simulated in a multi-level way. Moreover, the bionic device is simple in structure and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of bionic research on physical models, in particular to a bionic device that uses double-laminated piezoelectric transducers to simulate human vocal cords. Background technique [0002] The vocal cords are the core organ and physiological basis of the human vocal system, and largely determine the basic characteristics of the human voice. The research on the vocalization mechanism of the vocal cords not only helps to reveal the vibration characteristics of the vocal cords, but also provides a theoretical basis for the pathological diagnosis of the vocal cords. [0003] From the current point of view, there are two main ideas for studying vocal cord vibration: one is to use a mass spring oscillator to simulate the vocal cord, and establish a spring-mass model of vocal cord vibration. There are mainly single-mass models for single-degree-of-freedom vibrations, two-mass models for two-degree-of-freedom vibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K9/122
Inventor 曹辉张吉伟白钧元
Owner SHAANXI NORMAL UNIV
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