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

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. ...

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 present invention provides a fast response and gas detection sensor. Carbon nanotube ionization self-resonance gas sensor with various types, high repeatability, not easily affected by environmental factors such as temperature and pressure, and suitable for field use

Images