研究目的
To propose an overhead transmission line tensiometer on insulator string based on fiber Bragg grating and cantilever beam for overhead transmission line breakage warning.
研究成果
The tensiometer has the merits of passive, immunity to the electromagnetic field, and reliable. Based on simulation on ANSYS and experiment, tensiometer can be used as a warning for overhead transmission line breakage.
研究不足
Due to the limitations of experimental conditions, it was impossible to find an experimental platform capable of exerting such a strong force as the sensor is designed to withstand.
1：Experimental Design and Method Selection:
The tensiometer is designed based on fiber Bragg grating (FBG) and cantilever beam to measure the force between the insulator string and the high voltage transmission tower.
2：Sample Selection and Data Sources:
The system consists of passive tensiometer, all-dielectric self-supporting (ADSS) optical fiber cable, and information demodulation and monitoring platform.
3：List of Experimental Equipment and Materials:
FBGs, cantilever beam, ADSS optical fiber cable, information demodulation and monitoring platform.
4：Experimental Procedures and Operational Workflow:
The force applied to the ends of the tensiometer causes the cantilever beam structure to be deformed, resulting in compression or elongation of the FBG on the cantilever beam. The force is obtained by measuring the wavelength difference of two FBGs.
5：Data Analysis Methods:
The relationship between the force applied on the structure and the wavelength difference is simulated with ANSYS software.
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