An ultra fast-acting electro-hydraulic digital valve and high-speed electro-hydraulic servo valves using multilayered PZT elements

doi:10.4324/9780203223475-25

Chapter

An ultra fast-acting electro-hydraulic digital valve and high-speed electro-hydraulic servo valves using multilayered PZT elements

ABSTRACT

Liihmann[2] investigated the control valve using a PZT driving element with a switching time of 0.5ms. However, the valve was not sufficiently quick in response to develop a high-speed digital servo system.