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一、概述电磁振动台是振动台的台种之中使用极为广泛的一种。它的原理是以电能转变为机械能的形式,通过载流导体在磁场中切割磁力线而产生定向运动,其控制部分由供电电源、信号发生器、功率放大器、消励磁电源等组成。与机械式振动台相比,其显著的优点是频带较宽,振动稳定,波形失真小,控制、使用较为方便;缺点是有漏磁的影响,有些台的低频特性较差。
First, an overview of electromagnetic vibrating Taiwan is Taiwan’s shaking table species used in a very wide range. Its principle is that the electric energy is transformed into the form of mechanical energy, and the directional current is generated by cutting the magnetic flux in the magnetic field by the current-carrying conductor. The control part is composed of the power supply, the signal generator, the power amplifier, the de-excitation magnetic power supply and the like. Compared with the mechanical vibration table, its significant advantages are wide band, stable vibration, small waveform distortion, control, use more convenient; the disadvantage is the impact of magnetic flux leakage, and some low-frequency characteristics of the poor.