絶対変位センサを用いた2自由度空圧式除振装置の制御 : 帯域の改善と空気ばねを用いた制振(機械力学,計測,自動制御)

概要

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Acceleration signal from an accelerometer is widely used in the field of vibration control. Since it is preferable that velocity and displacement signals can be additionally applied to the control system, an absolute displacement sensor, which can simultaneously detect the 3 kinds of signals from its stable control loops, has been proposed. In this paper, two of the absolute displacement sensors expanded their bandwidth are firstly applied to the air type anti-vibration apparatus with two degrees-of-freedom, because the bandwidth in their phase characteristics was deficient to control the apparatus. Next, Phase-lag filters and differentiators for displacement signals are utilized to the proposed sensor. Finally, the control effects are compared with the case of feedback to VCM and it to air spring. Then, the acceleration, velocity, and displacement feedback called DAVDFB are applied to multi-degrees-of-freedom system.
2010-12-25