Carbon nano-tube ionization self-resonance type gas sensitive sensor

A gas sensor and carbon nanotube technology, applied in the field of gas sensors, can solve the problems of few types of detected gases, slow response speed, low repeatability, etc. high effect

Inactive Publication Date: 2013-08-28
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing gas sensor, such as slow response speed, few types of detected gases, low repeatability, easy to be affected by environmental factors such as temperature and pressure, and unsuitable for on-site use, the p

Method used

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  • Carbon nano-tube ionization self-resonance type gas sensitive sensor
  • Carbon nano-tube ionization self-resonance type gas sensitive sensor
  • Carbon nano-tube ionization self-resonance type gas sensitive sensor

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] refer to Figure 1 to Figure 5 , a carbon nanotube ionization self-resonance type gas sensor, comprising a carbon nanotube electrode 1, an aluminum plate electrode 2 and an insulating film 3, the carbon nanotube electrode 1 is covered with the insulating film 3, and the insulating film 3 is covered There is a row of grooves corresponding to the polarity distribution of different gases, and the insulating film 3 is covered with an aluminum plate electrode 2; a bias voltage generating device is connected between the carbon nanotube electrode 1 and the aluminum plate electrode 2, and the gas sensor The sensor also includes a noise generating device for generating noises of various stochastic resonance strengths and a gas recognition device for real-time recording of voltage-current detection data after multiple stochastic resonances are induced, and pattern recogni...

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Abstract

The invention relates to a carbon nano-tube ionization self-resonance type gas sensitive sensor, which comprises a carbon nano-tube electrode, an aluminum plate electrode and an insulating film, wherein the insulating film covers the carbon nano-tube electrode, and is provided with a row of concave grooves corresponding to polar contributions of difference gases, the aluminum plate electrode covers the insulating film, and a bias voltage generation device is connected between the carbon nano-tube electrode and the aluminum plate electrode. The gas sensitive sensor further comprises a noise generation device for producing noises with multiple stochastic resonance strengths and a gas recognition module for real-timely recording voltage-current detection data after inducing multiple stochastic resonances and carrying out pattern recognition classification on the detection data to achieve gas type detection. The carbon nano-tube ionization self-resonance type gas sensitive sensor has characteristics of rapid response, more gas detection varieties and high repeatability, is not easily affected by a temperature, an air pressure and other environmental factors, and is suitable for field use.

Description

technical field [0001] The invention relates to a gas sensitive sensor. Background technique [0002] There are many types of traditional gas sensors, such as electrochemical gas sensors, frequency gas sensors, gas sensors improved by doping, organic complex gas sensors, etc., which have been widely used in production and life. Traditional gas-sensing detection systems generally have unfavorable factors such as slow response speed, few types of detected gases, low repeatability, and easy to be affected by environmental factors such as temperature and pressure. The on-site detection and use of the gas sensing system. Contents of the invention [0003] In order to overcome the deficiencies of the existing gas sensor, such as slow response speed, few types of detected gases, low repeatability, easy to be affected by environmental factors such as temperature and pressure, and unsuitable for on-site use, the present invention provides a fast response and gas detection sensor. ...

Claims

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Application Information

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IPC IPC(8): G01N27/48
Inventor 惠国华王敏敏黄洁尹芳缘王绿野
Owner ZHEJIANG GONGSHANG UNIVERSITY
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