Design of the auto-stiffness measuring instrument for Electro hydraulic servo valve elastic element

Guanglin Wang; Nan Yin; Huifeng Wang
January 2016
Key Engineering Materials;2016, Vol. 667, p419
Academic Journal
The electro-hydraulic servo valve is the essential component of the electro-hydraulic servo control, and it was mainly used on many fields such as aviation, aerospace and navigation etc. People use the electro-hydraulic servo valve to drive plenty of loads. The electro-hydraulic servo valve has many advantages such as fast dynamic response, high control precision, and longevity. Hence, for the elastic element of the electro-hydraulic, which works as the significant feed-back component the characteristic of the stiffness has played an essential role in the electro-hydraulic servo. Based on the previous research of the technology automation and inspection experiment, this paper proposes an auto-stiffness admeasuring apparatus for the elastic element of the Hydraulic servo. and the experiment research has been proceeded. The experimental result shows that, the auto-stiffness admeasuring apparatus has the advantages of high precision, high automation; it can be well used in the productive practice.


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