A method for testing and extracting terahertz complex permittivity of biomacromolecular materials

A technology of complex permittivity and biological macromolecules, which is applied in the measurement of electrical variables, dielectric properties, resistance/reactance/impedance, etc., to achieve the effect of convenient acquisition and overcoming extraction difficulties

Active Publication Date: 2020-10-23
TIANJIN UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for testing and extracting the terahertz complex permittivity of biomacromolecular materials that solves the problem of extracting the terahertz complex permittivity of biomacromolecular materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for testing and extracting terahertz complex permittivity of biomacromolecular materials
  • A method for testing and extracting terahertz complex permittivity of biomacromolecular materials
  • A method for testing and extracting terahertz complex permittivity of biomacromolecular materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] A method for testing and extracting terahertz complex permittivity of biomacromolecular materials of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.

[0020] A method for testing and extracting the terahertz complex permittivity of biomacromolecular materials of the present invention comprises the following steps:

[0021] 1) Calibrate the terahertz test system to the rectangular waveguide port;

[0022] 2) Filling the macromolecular material into the rectangular waveguide sheet;

[0023] It is a 90GHz-140GHz rectangular waveguide sheet filled with macromolecular material glyceryl monooleate or glyceryl monolinolenate or glycerol monolaurate to a thickness of 0.873mm.

[0024] 3) Use the two rectangular waveguide ports of the terahertz test system to clamp the rectangular waveguide sheet filled with macromolecular materials to test the S parameters;

[0025] 4) According to the transmission-reflect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for testing and extracting biomacromolecule material terahertz complex dielectric constant. The method is characterized by comprising the following steps: calibratinga terahertz testing system to rectangle waveguide outlets; filling biomacromolecule material to a rectangle waveguide sheet; clamping the rectangle waveguide sheet filled with the biomacromolecule material by using two rectangle waveguide outlets of the terahertz testing system, and testing a S parameter; extracting complex dielectric constants and complex magnetic conductivities of the biomacromolecule material by using the S parameter so as to acquire multiple groups of complex dielectric constants and complex magnetic conductivities; and selecting the group with the real part of the complexmagnetic conductivity closet to 1 as a final result from multiple groups of extraction results by utilizing the feature that the real part of the biomacromolecule complex magnetic conductivity is closest to 1. The biomacromolecule material terahertz complex dielectric constant extraction difficulty is firstly overcome through the method disclosed by the invention, a unique value of the biomacromolecule material complex dielectric constant can be conveniently acquired by using the method disclosed by the invention, and the method can provide precious information for applying the biomacromolecule material to the industrial production.

Description

technical field [0001] The invention relates to a method for extracting complex permittivity of materials. In particular, it relates to a method for testing and extracting terahertz complex permittivity of biological macromolecular materials. Background technique [0002] Before applying biomacromolecular materials to industries such as medicine and food, it is necessary to obtain their molecular information. The most commonly used method is X-ray test or Raman test to obtain the energy spectrum of the biomacromolecular material, and then the information of the macromolecular material can be obtained. However, this information does not contain terahertz frequency band information. The current research results show that the vibration and rotation energy levels of biomacromolecular materials fall in the terahertz frequency band. Therefore, how to test the terahertz parameters of biomacromolecular materials is a very important thing. One of the important parameters to charac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/26
CPCG01R27/2617
Inventor 马建国杨闯傅海鹏
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap