Hydraulic Servo System Trainer

Hydraulic systems are particularly suitable for applications where large actuation forces are required.
The unit allows the operation of a hydraulic servo system to be investigated in detail. A carriage with a mass of 50kg is moved by a hydraulic cylinder.
Additional springs and an adjustable hydraulic damper permit static and dynamic loads to be simulated.
The displacement of the carriage is established using a potentiometric position sensor and compared against the reference variable.
The control deviation is processed in a separate servo amplifier.
Self-contained training system of a complete hydraulic position control loop with adjustable loading conditions.
Oil circuit with hydraulic unit, hydraulic accumulator, 2 manometers, control valve and hydraulic cylinder to move a weighed carriage.
Operation of the electromagnetic control valve for position control by proportional amplifier
Proportional amplifier with adjustable gain and 3- channel line recorder
All control variables available as voltage signals 0…10V
Potentiometric displacement sensor  
Adjustable load conditions on carriage using two springs with hand wheel and adjustable damping  
Low-friction ball bearing-mounted carriage
Mobile steel profile trolley with built-under unit
Hydraulic unit power output 1.1kW,flow rate 3.8L/min, head 1500m, tank capacity 10L.hydraulic accumulator capacity 2L,accumulator charging valve max.40L/min.
hydraulic cylinder piston diameter d = 40mm,stroke 150mm, mass moved 50kg
Control valve NG6 nominal flow rate 24L/min, activation +/- 10V, potentiometric position sensor measuring range 150mm, output 0…10V
Servo amplifier 230V,50Hz, 1 phase.