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An icing monitoring and melting system based on fiber grating and graphene film

A graphene film and fiber grating technology, which is applied in the measurement of color/spectral characteristics, etc., can solve the problems of the accuracy of the detection results of environmental limitations, the inability of real-time synchronous monitoring of ice measuring and melting devices, and achieve real-time storage and accurate icing signals. Effect

Active Publication Date: 2020-02-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems that the existing ice measuring and melting devices cannot monitor and implement the freezing and melting process synchronously in real time, the use of the existing ice measuring and melting devices is limited by the environment and the accuracy of the detection results is low, a fiber grating based Integrated icing monitoring and icing melting system with graphene film

Method used

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  • An icing monitoring and melting system based on fiber grating and graphene film
  • An icing monitoring and melting system based on fiber grating and graphene film
  • An icing monitoring and melting system based on fiber grating and graphene film

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specific Embodiment approach 1

[0033] Specific implementation mode one: combine Figure 1~3 Describe this embodiment, the present embodiment is based on fiber Bragg grating and graphene thin film icing monitoring and ice-melting integrated system by measuring ice and melting ice composite film, fiber Bragg grating sensor demodulator 6, composite film input power supply 7 and computer 8 constitute;

[0034] The ice-measuring and ice-melting composite film consists of several optical fiber Bragg grating sensing strips 1, a graphene film 2, an upper polyethylene terephthalate film 3, a lower polyethylene terephthalate film 4 and Several plastic sleeves 5 are formed;

[0035] The upper polyethylene terephthalate film 3 is arranged on the upper surface of the graphene film 2, and the lower polyethylene terephthalate film 4 is arranged on the lower surface of the graphene film 2, and the graphene film 2 passes through the upper surface The polyethylene terephthalate film 3 and the lower polyethylene terephthalate...

specific Embodiment approach 2

[0042] Embodiment 2: This embodiment differs from Embodiment 1 in that: 3 to 7 fiber Bragg grating sensing strips 1 are arranged per square meter in the ice-measuring and ice-melting composite film. Other steps and parameters are the same as those in the first embodiment.

specific Embodiment approach 3

[0043] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the fiber Bragg grating sensor belt 1 is composed of 6 to 40 fiber Bragg grating sensors connected in series. Other steps and parameters are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides an icing monitoring and ice melting integrated system based on an optical fiber grating and graphene thin film, and relates to an icing monitoring and ice melting integrated system. The icing monitoring and ice melting integrated system aims at solving the problems in an existing ice testing and ice melting technology that the icing process and the ice melting process cannotbe monitored synchronously, an existing ice testing and ice melting device is limited by the environment, and the detection result is low in accuracy. The system is constituted by ice testing and icemelting composite film, an optical fiber grating sensing demodulator, a composite film input power source and a computer; the ice testing and ice melting composite film is constituted by an optical fiber Bragg grating sensing belt, the graphene thin film, upper layer polyethylene terephthalate film, lower layer polyethylene terephthalate film and a plastic casing pipe; the optical fiber Bragg grating sensing belt cascaded by multiple optical fiber Bragg sensors. The system can achieve the process of monitoring icing and ice melting synchronously and is flexible in arrangement, high in accuracy and high in efficiency.

Description

technical field [0001] The invention relates to an integrated system of icing monitoring and icing melting. Background technique [0002] Graphene is a two-dimensional carbon material composed of carbon atoms. The tensile strength and elastic modulus are 125GPa and 1.1TPa respectively, and the Young's modulus is about 42N / m 2 , the electron mobility can reach 2×10 5 cm 2 / V s, about 140 times the electron mobility of silicon materials, 20 times that of gallium arsenide, high temperature stability, it is almost completely transparent, only absorbs 2.3% of light, and the thermal conductivity is as high as 5300W / m K , which is higher than that of carbon nanotubes and diamonds, and its electron mobility exceeds 15000 cm at room temperature 2 / V·s, which is higher than that of carbon nanotubes or silicon crystals, and the resistivity is only about 10 -6 Ω cm, lower than copper or silver. Graphene has a unique two-dimensional nanostructure, large thickness-to-diameter ratio a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/27
CPCG01N21/27
Inventor 鲍跃全郭奕兵李惠张照辉
Owner HARBIN INST OF TECH
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