
11Magnetorheological Fluid
microprocessor should have at least 12 bits to store and operate the control
software, and should be able to accommodate high sampling frequencies
up to 10 kHz. Furthermore, the response time of the current amplier to the
source input voltage should be fast enough to facilitate the working of the
feedback control system. Most control algorithms currently used to attenu-
ate vibration using MR uids are dubbed semi-active. The performance of
semi-active control systems can generally be enhanced in the active mode
without the use of large power sources. One of the most popular control
logics for semi-active control system ...