유공압시스템학회논문집 (Transactions of The Korea Fluid Power Systems Society)
- 제3권2호
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- Pages.1-6
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- 2006
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- 1738-3315(pISSN)
압전 밸브용 압력 레귤레이터
Pressure Regulator for Piezoelectric Valve
초록
The pressure regulator which is used for controlling the reducing pressure in the piezoelectrically driven pneumatic valve has been studied. The pneumatic valve of this study object is 2-stage type and consists of a piezoelectric actuator, a controller, a poppet valve and a pressure regulator. Nominal flow of 50 lpm, maximum operating pressure of 0.9MPa and frequency characteristic of 10Hz and over are required in this pneumatic valve, but the pressure regulator is needed because piezoelectric actuator has no ability to control the pressure of 0.9MPa directly. In this study, bimorph type PZT actuator of
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