Gap bridging
Ability of elastomer seals to bridge a gap with their spine, without being squeezed in ( gap extrusion ). The gap bridging depends on the type and hardness of the material.
Signal
Physical variable to represent information, wherein selected carry information. The representation may relate to the transfer, processing and storage. It is only permitted to speak of signals in the c
Vibration fatigue limit of a system
A system is able to handle oscillations –– i.e. oscillations may occur –– if a periodic exchange of energy takes place between two energy stores (spring-mass system, e.g. a hydrostatic transmission, i
PROM
Programmable Read Only Memory Semiconductor memory .
Nominal size
The details relating to the nominal size of devices used in fluid technology are key variables which do not refer to units or dimensions and do not have to be associated with any numerical variable fo
Power density
Indicates the relationship between the achievable or transferable power of a working component and its volume and therefore provides a way of measuring the compactness of the device (drive). A high po
Climatic resistance
Collective term for the behaviour of components and systems under various climatic conditions. DIN 40 040 describes and classifies climatic conditions for tests.
Cavitation erosion
Wear occurring at metallic surfaces as a result of cavitation causing vapour bubbles to form and collapse under certain conditions, with the surface of the material suffering mechanical stress if thes
Pulse shaped control signals
Signals which mimic pulses, such as when photoelectric light barriers (gates) output a pulse for activation or deactivation purposes when a beam is interrupted.
Hydraulic inductance L h
Describes the pressure difference required for a change in flow rate (acceleration) and based on the mass inertia: where l = length and A = cross section of the column of oil