So I'm working on my senior design project that involves some physics and hydraulics. We need a way to modulate our hydraulic system, but don't know how. We have thought of using a electro-hydraulic actuator to do so, but cannot find where to purchase one nor if it is good for our project. We need rapid oscillations. We are using a 5mm hydro line, with max 12Vdc for all components. Is there something out there that meets our needs?