目前,振动的测量研究在铁路交通、机械制造、土木建筑、工程爆破、抗震和国防工程中越来越广泛,工程技术上为要充分利用有益于工程的振动,限制和避免有害于工程的振动,准确测量振动参数是十分重要的。国内外使用的位移测震仪的弹性体系主要有两大类:质量——螺旋弹簧式和摆式。螺旋弹簧式自振频率较高,难以测量低频振动。摆式自振 At present, the vibration measurement research is more and more widely used in railway traffic, machinery manufacturing, civil engineering, engineering blasting, earthquake resistance and national defense engineering. In engineering and technology, in order to make full use of vibration beneficial to engineering and to limit and avoid vibration harmful to engineering, Accurate measurement of vibration parameters is very important. There are two main types of elastic systems for displacement seismometers used at home and abroad: mass-coil spring type and pendulum type. High self-resonant coil spring frequency, difficult to measure low-frequency vibration. Tilting self-vibration