研究目的
Investigating the design and experimental verification of a micro-displacement sensor with temperature compensation based on double-ball cascade and fiber Bragg grating.
研究成果
A novel micro-displacement sensor with temperature compensation based on double-ball cascade and Bragg grating is proposed and experimentally verified. The sensor demonstrates high sensitivity to micro-displacement and temperature, with effective temperature compensation reducing cross-sensitivity. Future studies could explore optimization of the sensor structure for enhanced performance.
研究不足
The sensor's performance is limited by the mechanical strength of the sensing structure and the precision of the micro-displacement device. The temperature compensation method may not fully eliminate cross-sensitivity in all conditions.
1：Experimental Design and Method Selection:
The sensor is designed using a double-ball cascade and a fiber Bragg grating (FBG) in series to measure micro-displacement with temperature compensation. The first ball excites the cladding mode, and the second ball facilitates coupling interference between the cladding mode and the core mode.
2：Sample Selection and Data Sources:
The sensor structure is made of a FBG and a double-ball cascade. The core and cladding diameters of single mode fiber (SMF) are 8.2μm and 125μm respectively.
3：2μm and 125μm respectively.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: The sensor system includes a broadband light source, optical spectrum analyzer, and screw micrometer for generating micro-displacement.
4：Experimental Procedures and Operational Workflow:
The sensing structure is affixed to a micro-displacement device, and the screw micrometer is used to control micro-displacement. Temperature is varied from 20°C to 160°C in steps of 10°C.
5：Data Analysis Methods:
The wavelength drift of the interference dip is measured to determine micro-displacement and temperature sensitivities. A sensing matrix is used for temperature compensation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
