A micro-contact force optical fiber sensing probe based on polymer hollow microtubes and its preparation method
A hollow micro, polymer technology, applied in the direction of measuring, measuring force, instruments, etc. by measuring the change force of the optical properties of the material when it is stressed, can solve the problems of mass production and industrialization promotion, low preparation efficiency, and equipment cost. Advanced problems, to achieve the effect of precise size control, high production efficiency and low production cost
Active Publication Date: 2022-05-06
GUILIN UNIV OF ELECTRONIC TECH
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Problems solved by technology
[0005] In addition, the current preparation of polymer microstructures is mainly based on femtosecond laser two-photon polymerization technology. For example, patent application 201410375257.5 uses a high-power focused femtosecond laser to perform three-dimensional point-by-point scanning of unpolymerized UV-curable adhesives. The cost of equipment is high, and the preparation The efficiency is low and the difficulty is high, and it is impossible to really carry out mass production and industrialization promotion
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[0025] Such as Figure 1-2 as shown, figure 1 A structural schematic diagram of a micro-contact force optical fiber sensing probe based on a polymer hollow microtube proposed in an embodiment of the present invention, figure 2 for figure 1 Schematic diagram of the assembly process of the sensing probe.
[0026] refer to figure 1 , a kind of electric cable that the present invention proposes is based on the micro-contact force optical fiber sensing probe of polymer hollow microtube, comprises polymer hollow microtube 1 and single-mode optical fiber 2, and the periphery of polymer hollow microtube 1 passes ultraviolet curing glue 3 and The core end face of the single-mode fiber 2 is connected.
[0027] refer to figure 2 , drip UV-curable glue 3 on the core end face of the single-mode fiber 2, then place the polymer hollow microtube 1 on the core end face of the single-mode fiber 2, and connect the polymer hollow microtube 1 to the single-mode fiber 2 through the UV-curabl...
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Abstract
The invention discloses a micro-contact force optical fiber sensing probe based on a polymer hollow microtube, which comprises a polymer hollow microtube and a single-mode optical fiber. The outer circumference of the polymer hollow microtube is connected to the end face of the single-mode optical fiber. The light emitted by the single-mode fiber of the probe forms Fabry-Perot interference in the polymer hollow microtube. When a micro-contact force acts on the polymer hollow microtube, the polymer hollow microtube deforms, thereby modulating the interference light signal. , by demodulating the wavelength of interference fringes on the reflection spectrum of single-mode fiber, ultra-high sensitivity micro-contact force sensing detection can be realized. The preparation of the polymer hollow microtube is simple in operation, high in preparation efficiency, low in preparation cost, easy for mass production, and can realize precise control of the size of the polymer hollow microtube.
Description
technical field [0001] The invention relates to the technical field of optical fiber sensing, in particular to a microcontact force optical fiber sensing probe based on polymer hollow microtubes and a preparation method of polymer hollow microtubes. Background technique [0002] Contact force refers to the stress generated in the contact area and its vicinity when two contacting objects are pressed against each other. The study of tiny contact force helps to achieve fine manipulation. Microcontact force sensors are widely used in biomedicine, material chemistry and other fields, and have effectively helped these disciplines to achieve innovation and progress. For example, in minimally invasive surgery, the micro-contact force sensor can sense the information of biological tissue, and transmit it to the doctor after processing and analysis, so that the doctor can obtain the state of the real biological tissue and use it to judge whether the biological tissue is pathological; ...
Claims
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IPC IPC(8): G01L1/24
CPCG01L1/242
Inventor 曲士良刘一郎昌鹏李金健
Owner GUILIN UNIV OF ELECTRONIC TECH