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High-Q-value temperature sensing Anapole resonance structure based on liquid metal

A technology of liquid metal and resonant structure, which is applied in the field of radiation control and perception detection, can solve the problems of low sensitivity, weak deformation, small resolution of temperature sensing, etc., and achieve the effect of high perception sensitivity and high resolution

Active Publication Date: 2020-09-25
UNIV OF ELECTRONIC SCI & TECH OF CHINA +1
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Problems solved by technology

[0007] The temperature sensing technology based on the difference in thermal expansion coefficient is ingeniously designed and novel, but the deformation caused by the difference in thermal expansion coefficient of heterogeneous composite materials is relatively weak, and there are also problems such as low temperature sensing resolution, low sensitivity, and small dynamic range. Mechanism defects, currently only in the stage of theoretical analysis and feasibility study

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  • High-Q-value temperature sensing Anapole resonance structure based on liquid metal
  • High-Q-value temperature sensing Anapole resonance structure based on liquid metal
  • High-Q-value temperature sensing Anapole resonance structure based on liquid metal

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[0039] Please refer to figure 1 with figure 2 , the present embodiment provides a high-Q temperature-sensing Anapole resonant structure based on liquid metal, which includes n×n unit structures arranged in a periodic array and spaced from each other (n is an integer greater than zero), the array of the present embodiment The arrangement of the unit structure in the medium is a square array. The unit structure is formed by injecting liquid metal into the medium, wherein the medium wraps the liquid metal inside. The medium used in this embodiment is a dielectric substrate, and the thickness of the dielectric substrate is 10.5mm. The constant is 3.2, the working frequency of the unit structure application in this embodiment is 1.9GHz, the interval D between the unit structures of the array is d*2, and d is 5mm; the unit structure includes a symmetrically arranged liquid storage structure, a horizontal thin rod, and The first longitudinal thin rod and the second longitudinal thi...

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Abstract

The invention discloses a high-Q-value temperature sensing Anapole resonance structure based on liquid metal, and is applied to the technical fields of sensing detection, radiation control and the like. The structure is formed by periodically arranging n * n high-Q-value resonance units. The high-Q-value resonance unit is designed according to the Anaple theory and in combination with the characteristics of thermal expansion, fluidity and the like of liquid metal, so that the resonance unit has the high Q-value characteristic, and high temperature sensing resolution can be achieved. And meanwhile, in order to improve the temperature sensing capability, a liquid storage structure is added in the resonance structure, so that relatively high sensing sensitivity is realized.

Description

technical field [0001] The invention relates to the technical fields of sensory detection and radiation control, in particular to a high-Q temperature-sensing Anapole resonant structure based on liquid metal for temperature-sensing detection. Background technique [0002] Electromagnetic Metamaterials (Electromagnetic Metamaterials) is a class of artificially synthesized structural materials with singular electromagnetic properties. The design and preparation of new devices provide an effective way. There is a strong correlation between the resonant frequency / strength of electromagnetic metamaterials and unit structural parameters, dielectric material properties, and surrounding environmental factors. Based on this, new sensing technologies and implementation methods based on electromagnetic metamaterials can be developed, and can be widely used in sensing And detect the characteristics and changes of media, pressure, humidity, temperature, chemistry and biology in the envi...

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Application Information

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IPC IPC(8): G01K7/36G01K5/32H03H9/24
CPCG01K5/32G01K7/36H03H9/24
Inventor 文光俊余华龙李建马亮黄勇军陈德旭李贵张东亮
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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