Flow Rate Control using Particle Excitation Valve with Non-linear Compensation

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  • 微粒子励振型空気流量制御弁の非線形性補償による流量制御
  • ビリュウシレイシンガタ クウキ リュウリョウ セイギョベン ノ ヒセンケイセイ ホショウ ニ ヨル リュウリョウ セイギョ

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Abstract

The purpose of this study is the development of a valve that can precisely control pneumatic cylinders. The valve is lightweight and has simple structure. The valve uses a piezoelectric oscillator which is driven in the resonance mode, and it can control flow rate by controlling the amplitude of the particle excitation. In this report, we have designed a new prototype for the purpose of high controllability. We have applied a non-linear control algorithm to control Q-V nonlinearlity of this valve. We found that this control works well to realize linear Q-V characteristics.

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