| 高分辨率电子倾角传感器HRTM的倾角漂移和固有频率研究 |
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| 引用本文： | 何东汉,郑 勇,李崇辉,陈 冰,陈张雷.高分辨率电子倾角传感器HRTM的倾角漂移和固有频率研究[J].大地测量与地球动力学,2022,42(7):766-770. |
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| 作者姓名： | 何东汉 郑 勇 李崇辉 陈 冰 陈张雷 |
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| 摘 要： | 电子倾角传感器普遍存在倾角漂移和输出数据跳变的现象，检测倾角传感器的倾角漂移规律和数据跳变的固有频率可以有效改善倾角传感器的数据质量。基于高分辨率电子倾角传感器HRTM（very high resolution tiltmeter）的工作原理，分析影响倾角传感器倾角漂移的因素，设计检验倾角传感器输出数据固有频率的实验平台，提出基于傅里叶变换的固有频率检测方法。基于地下室恒温环境下采集的10 h数据进行实验，结果表明，该传感器的倾角输出数据存在明显的倾角漂移和输出数据跳变现象，倾角漂移与仪器内部温度高度线性相关，x轴、y轴跳变的固有频率分别为2.773 Hz和2.813 Hz。
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| 关 键 词： | 倾角传感器 物理钟摆 地震测量 倾角漂移 温度漂移 固有频率 |
Study on Dip Drift and Natural Frequency of High-Resolution Electronic Inclination Sensor HRTM |
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| HE Donghan,ZHENG Yong,LI Chonghui,CHEN Bing,CHEN Zhanglei.Study on Dip Drift and Natural Frequency of High-Resolution Electronic Inclination Sensor HRTM[J].Journal of Geodesy and Geodynamics,2022,42(7):766-770. |
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| Authors: | HE Donghan ZHENG Yong LI Chonghui CHEN Bing CHEN Zhanglei |
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| Abstract: | The electronic tilt sensor generally has a phenomenon of tilt drift and output data jump. Therefore, detecting the inclination drift law of the tilt sensor and the natural frequency of the data jump can effectively improve the data quality of the tilt sensor. Based on the working principle of high-resolution electronic tilt sensor HRTM, we analyze the factors affecting the tilt drift of the tilt sensor. We design the experimental platform for testing the natural frequency of the tilt sensor output data. We then propose a natural frequency detection method based on Fourier transform. Based on 10 h experimental data collected at constant temperature in the basement, the results show that the tilt output data of the sensor has obvious tilt drift and output data jump phenomenon, the tilt drift is highly linearly related to the internal temperature of the instrument, and the inherent frequency of the x-axis and y-axis jump is 2.773 Hz and 2.813 Hz, respectively. |
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| Keywords: | inclination sensor physical pendulum seismic survey inclination drift temperature drift natural frequency |
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