In this paper, formulae of calculating best operating position of horizontal pendulum tiltmeter are derived, choice of precision and parameter are discussed.
本文推导出水平摆倾斜仪摆杆初始平衡位置的计算公式，并对其精度及各参数的选取进行了分析。
Based on the theory of horizontal pendulum, the theoretical function model of magnetic error of self adjusting level is deriveted, and observation equation in geomagnetic field is set up.
利用物理摆原理导出了自动安平水准仪磁致误差的理论函数模型，建立了地磁场中的观测方程。
Tilt meter is one kind of basic instrument of earth tide and the earthquake research, which includes the horizontal pendulum tilt meter, the water tube tilt meter and the vertical pendulum tilt meter.
倾斜仪是一种研究固体潮和地震的基本仪器，主要有水平摆倾斜仪、水管倾斜仪、垂直摆倾斜仪。
Tilt meter is one kind of basic instrument of earth tide and the earthquake research, which includes the horizontal pendulum tilt meter, the water tube tilt meter and the vertical pendulum tilt meter.
倾斜仪是一种研究固体潮和地震的基本仪器，主要有水平摆倾斜仪、水管倾斜仪、垂直摆倾斜仪。
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