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Vocal cord vibration phonation efficiency measuring system

A technology of efficiency measurement and vocal cord vibration, applied in the field of vocal cord vibration sound production efficiency measurement system, which can solve the problems of lack of measurement and display, lack of research and development and application of proprietary measurement system, etc.

Inactive Publication Date: 2017-01-25
许亚夫
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, these studies mainly focus on the proposal and demonstration of specific methods, but lack the development and application of proprietary measurement systems
Secondly, the calculation of important parameters such as glottic airflow, subglottic pressure, and sound level often focus on post-data processing, lacking real-time and accurate measurement and display

Method used

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  • Vocal cord vibration phonation efficiency measuring system
  • Vocal cord vibration phonation efficiency measuring system

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Embodiment Construction

[0017] like figure 1 As shown, it is a block diagram of a vocal cord vibration vocalization efficiency measurement system of the present invention. It includes a sensor module, a signal preprocessing module, an AD conversion module, a central control module, a keyboard input and a liquid crystal display module, a single-chip microcomputer and a PC interactive module, and a software processing module. A sensor and a sound level meter, the sound level meter is a microphone; the signal output terminals of the sound pressure sensor, the airflow sensor and the microphone are connected to the signal input terminal of the signal preprocessing module, and the signal output terminal of the signal preprocessing module is connected to the AD The signal input end of the conversion module, the signal output end of the AD conversion module is connected to the signal input end of the central control module, and the keyboard input and liquid crystal display module are also connected with the ...

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Abstract

The invention relates to a vocal cord vibration phonation efficiency measuring system. The phonation efficiency can quickly reflect the differences between the normal condition and pathological condition. The invention comprises the sensor module, signal pre-processing module, AD converter, central control module, keyboard input and the LED display module, single chip module and PC interaction module, software processing module. The sensor module comprises the sound pressure, air flow sensor and sound level meter which is the microphone; the outputs of the sound pressure sensor, gas flow sensor and microphone are connected to the input of the signal pre-processing module. The output of the signal pre-processing module is connected to the input of the AD converter. The output of the AD converter is connected to the signal input of the central control module. The keyboard input and the LED display are also connected to the signal input of the central control module; the signal output of the central control module is connected to the single chip and the PC interaction module. The output of the single chip and the PC interaction module are connected to the software processing module.

Description

technical field [0001] The invention belongs to the technical field of medical testing equipment, and in particular relates to a measurement system for vocal cord vibration and vocalization efficiency. Background technique [0002] Under the regulation and control of the central nervous system, the sound is generated by the subglottic airflow squeezing the vocal cords, and then through the filtering effect of the upper vocal tract resonance cavity. This process actually converts aerodynamic energy into sound energy. The conversion efficiency of this energy is the vocalization efficiency, which is related to factors such as the specific structure of the vocal cords and the way of vocalization; in addition, the vocalization efficiency of patients with vocal cord lesions is often quite different from that of normal people, so it is also used to test vocal organs. Is there an effective means of lesions. [0003] At present, two methods are mainly used to measure the sound produ...

Claims

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Application Information

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IPC IPC(8): A61B5/00
Inventor 许亚夫
Owner 许亚夫
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