Velocity error
setpoint. For this reason the velocity error is also termed the "following error". The velocity error can be reduced by increasing the velocity amplification .
Valve dynamics
dynamics, it was agreed to investigate the valve system with sinusoidal signals. Thus valve dynamics can be described as the valve's response to sinusoidal input signals .
Controller synthesis
analysis is performed of the dynamic of the system. Then a search is conducted to find a controller that can provide this data and an initial specification of the necessary control parameters .
Damping device
an actual damping process that stabilises the drive as the load pressure changes. Damping devices can operate mechano-hydraulically as throttle valves or bypass valves or electro-mechanically as solenoid
Chip
integrated circuit. Depending on the technology used, a chip with a size of a few square millimetres can house thousands or hundreds of thousands of gate functions (logic operators), or even an entire mi
Power input pump
and the flow Q as well as from the efficiency factor η of the pump. Alternatively, the power input can also be calculated from the torque M and the rotational speed n:
Dynamic characteristics of continuously adjustable valves
and phase-frequency response . Characteristic points of these functions are the time constant that can be damped natural frequency and the damping.
Multi-media connector
Arrangement whereby a greater number of pipes for hydraulics, pneumatics and/or electrics can be connected or disconnected in one go ( Figure M 31 ). It must be set up in a way that allows a high number
Operating life of a filter
Estimated time or time determined on similar systems that a filter element can be used before it must be replaced. The operating life is dependent on the filter selected, the amount of contamination that
Absolute measuring system
zero point. Every point on the measured path is identified by a unique signal. Measuring systems that can be used: code straightedge, angular position encoder, resolver , potentiometer among others