Aiming at the problem that various manufacturing and assembly errors will change the jet shape of jetpipe servo valve

thus affecting its static and dynamic characteristics

considering the actual requirement of microjet detection for industria site

a novel micro-jet observation method and system are proposed

which contains hydraulic control

micro-imaging

oil mist processing and waste liquor recovery. The hydraulic pressure drive control and signal control technology of image acquisition synchronization are established

an algorithm for multistage jet feature extraction is designed

and the application of servo valve performance evaluation are carried out

it can be widely used for mechanism study and performance test of fluidic devices.