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以往的有关书中，涉及垂直磁力仪东西向不水平对读数的影响时认为：“仪器底座东西不水平不影响磁秤的平衡方程式，只是由于底座的倾斜使光系的光轴不垂直，入射角发生了变化”。实际上，这个结论只适用于刃口式磁秤，对悬丝式垂直磁力仪是不正确的。本文对磁秤平衡方程式进行了讨论，并经实际测定证明当仪器东西向不水平时，悬丝式垂直磁力仪和刃口磁力仪，对其读数的影响正好相反。
The related book in the past involved the influence of the vertical magnetometer on the reading when it is not horizontal: “If the instrument base does not affect the balance equation of the magnetic balance, it is only because the tilt of the base makes the optical axis of the light system not vertical, Angle has changed. ” In fact, this conclusion applies only to the edge-type magnetic scale, the vertical wire-type magnetometer is not correct. In this paper, the magnetic balance equation is discussed, and the actual measurement proved that when the instrument is not horizontal east-west, the hanging wire vertical magnetometer and the edge magnetometer, its reading the opposite.