| 摘要 |
The method involves detecting a pressure signal (2) by a pressure sensor (1) in a hydraulic system. Alternating component of the pressure signal is determined, and a variable (6) that changes over time is determined by a controller (4) with respect to a nominal value and the alternating component. Piezoelectric actuator (9') is subjected to the variable such that volume of the actuator is changed corresponding to the variable, where the actuator is connected with the hydraulic system. High-or low pass filtering process is carried out by the alternating current component. An independent claim is also included for a device for actively suppressing pressure oscillations or pressure pulsations in a hydraulic system of a cold- or warm-roller or a strip conditioner for iron, steel or aluminum materials, comprising a controlling unit. |
