Terahertz spectrum qualitative detection method for student school uniform textile material

A technology for qualitative detection of textile materials, applied in the field of terahertz spectroscopy qualitative detection of textile materials for students' school uniforms, can solve the problems of complicated experimental process of detection methods, and achieve the effects of improving optimization ability, improving accuracy and rapid detection.

CN113092403AActive Publication Date: 2021-07-09GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-07-09

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Abstract

The invention discloses a terahertz spectrum qualitative detection method for a student school uniform textile material, which comprises the following steps: preparing different textile material experiment samples of a student school uniform, obtaining terahertz absorbance spectrums of different textile materials by using a terahertz time-domain spectroscopy system, and extracting feature information of a grey-scale map of the terahertz absorbance spectrums by using a Krawtchouk moment; combining an improved particle swarm algorithm with a support vector machine to establish a qualitative model, obtaining a classification identification model of different textile materials; collecting the textile materials on the school uniform, obtaining the feature information of the textile materials on the school uniform, and sending the feature information of the textile materials on the school uniform into the classification identification model of the corresponding textile materials for qualitative detection. The terahertz spectrum can be used for carrying out sexual detection on the textile material of the school uniform, so that the school uniform quality of primary and secondary school students is ensured, and primary and secondary school student safety incidents caused by the school uniform quality are avoided.
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Description

technical field

[0001] The invention relates to the technical field of textile material identification, in particular to a terahertz spectrum qualitative detection method for student school uniform textile materials. Background technique

[0002] With the development of the textile industry, there are more and more varieties of blended fabrics and textile designs and colors. Different textiles have strict regulations on the types and contents of their textile materials. Especially in the clothing industry, illegal textile materials will cause different degrees of damage to the human body, especially in recent years because of the types of textile materials used in school uniforms for primary and middle school students. Quality problems caused by non-compliance with standards have occurred frequently. In order to ensure the product quality of students' school uniforms, it is often necessary to identify various types of fiber materials in the factory production and school acc...

Examples

Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

[0039] Terahertz (THz for short) waves usually refer to electromagnetic radiation with a frequency between 0.1-10THz (wavelength 3mm-30um), which is between microwave and infrared. The reason why terahertz technology has gradually attracted people's attention in recent years is mainly because most substances have unique responses in the frequency band of terahertz waves. Compared with electromagnetic waves in other bands, terahertz waves have the following unique properties: 1) Transient: The pulse width of THz pulses is on the sub-picosecond level, and pulses of this magnitude can suppress the background to a large extent The noise interference caused by radiation has better stability. 2) Broadband: The vibrational energy levels and rotational energy levels of many macr...