研究目的
To design and test an optical fiber microseismic accelerometer based on cantilever beam structure for monitoring microseismic signals in coal mines.
研究成果
The optical fiber microseismic accelerometer based on cantilever beam structure is suitable for low-frequency microseismic signal measurement in mines, with a frequency response range of 10Hz-100Hz.
研究不足
The sensor is suitable for low-frequency (<100Hz) microseismic signal measurement, which may limit its application in scenarios requiring higher frequency responses.
1：Experimental Design and Method Selection:
The study involves the design of an optical fiber microseismic accelerometer based on a cantilever beam structure, theoretical analysis of its sensitivity, and experimental testing using a B&K shaking table test system.
2：Sample Selection and Data Sources:
The sensor is tested under various frequencies to analyze its amplitude-frequency characteristics.
3：List of Experimental Equipment and Materials:
B&K shaking table test system, optical fiber microseismic accelerometer.
4：Experimental Procedures and Operational Workflow:
The sensor is fixed on a shaking table, and its response to sinusoidal signals of different amplitudes and frequencies is measured.
5：Data Analysis Methods:
The frequency response curve of the sensor is analyzed to determine its suitability for low-frequency microseismic signal measurement.
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