Piloting line
Hydraulic fluid line for control tasks.
Stationary hydraulics
Collective term for hydraulic systems, which are installed and operated in a fixed location. Opposite: Mobile hydraulics , vehicle hydraulics.
Signal/noise ratio
Ratio of the value of an overlaid interfering signal to the value of the useful signal.
Shore hardness
Standard measure for the hardness of elastomers , in which the penetration depth is measured in a test specimen. A distinction is made between Shore A for softer specimens (up to approx. 90 Shore A) a
Creep feed (speed)
Slowly approaching a position. This is used in feed mechanisms with a high rapid traverse speed directly before the position is reached in order to achieve optimal position accuracy ( Figure S 28 ).
Noise level W
The acoustic power emitted by an oscillating element (acoustic radiator) as sound in air. It cannot be measured directly. Instead, it is calculated using the sound pressure or noise intensity and the
SAE flange
In hydraulics, four-hole flanges with the connection pattern standardised in SAE j 518 ( Figure S 1 ) are the most commonly used flange connections . The American SAE norm specifies two pressure stage
Roller lever
A lever with a roller, which transfers a switching movement to the element to be moved.
Test bench
System to review the correct functioning and the operational safety of the static and dynamic behaviour, as well as the correct functioning of technical devices and assemblies.