DYNAMIC MULTIPLE-STAGE BOARD Russian patent published in 1999 - IPC

FIELD: automatic control equipment, in particular, control systems of training equipment which has several tracing systems which control distributed load and operates in conditions of varying significant instability. SUBSTANCE: device has platform which carries load, hydraulic power supply and hydraulic drives each of which provides alternation of its position in space. Each drive has electric control input and comprises serial circuit of sensitive element, adder, power amplifier, hydraulic amplifier and power cylinder. Electric control input is connected to second input of hydraulic amplifier. Output of sensitive element is connected to platform. Each hydraulic drive has computer and two parallel circuits which consist of detector and controlled clipping amplifier, which are inserted between adder and power amplifier. Detectors in parallel circuits have opposite polarity. Control inputs of controlled clipping amplifier are connected to output of computer unit. Inputs of computer unit are connected to outputs of sensitive elements of hydraulic drives. EFFECT: increased precision of modeling of control actions. 7 dwg