| abstract |
An electromagnetic vibration platform system with an adjustable electric elastic support device is provided. The vibration platform system includes an electromagnetic vibration platform, a power amplifier and an adjustable electric elastic support device. The support device of the electromagnetic vibration platform is the adjustable electric elastic support device. The adjustable electric elastic support device includes a displacement sensor for detecting the displacement of the electromagnetic vibration platform moving element, the first adjustable amplifier, the second adjustable amplifier, a differentiator, a summator, an adjustable phase shifter, a subtracter and a proportion regulator. Through changing the magnification ratio of the controllable amplifier, the controllable phase shifter, the proportion regulator and so on, the support rigidity character parameter and damp character parameter of the vibration platform can be directly adjusted, which has better linearity. The electromagnetic vibration platform system is provided with adjustable parameter and better linearity and is convenient to realize. |