[Daekyung Tech] Vibration tester (hydraulic servo control type)

Quote Contact_CS@roasexpo.com

The hydraulic exciter is an excitation for modal testing of parts and equipment,
and it is a testing machine that can perform vibration fatigue of parts and equipment.
Since high-frequency motion is required rather than low-frequency motion due to the characteristics of use,
hydraulic actuators require low frictional force in the direction of motion.

An appropriate servo valve is adopted according to the required acceleration and frequency,
and it can reproduce sine waves, triangle waves, square waves, sweeps, and random waves up to 200Hz.
The characteristics of the hydraulic exciter have the disadvantage of not being able to perform high-frequency motion compared to the commonly used electronic exciter,but it has the advantage of generating a large-capacity excitation force,
and motion below the low frequency (about 30Hz) that the electronic exciter cannot reproduce.

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