Frequency response
Characterises the transient response of a linear system in the frequency range. It is independent on the type of system excitation, i.e. it is irrelevant whether a system is excited by a periodic or t
Frequency filter
To assess the noise emissions, as a rule, the entire frequency range is not measured. Instead, specific frequency bands of practical significance are measured. This action is undertaken using electric
Filter life
This parameter, which would be very important for the user, depends on so many boundary conditions that it can, at best, be estimated if the operating conditions are known.
Filter pores
Free passages in a filter element . These pores are only of equal size on metal meshes and . On the majority of tissues used, on the other hand, they are very different, as they are formed by the irre
Filter surface
Total area of the filter element that is subjected to the flow rate. To make this area as large as possible with given filter dimensions, the majority of are folded.
Filtration
To remove particles of dirt that the pressure fluid is carrying with the aid of filtration of a wide range of types.
Filter with bypass valve
Filters that provide a bypass for the flow rate around the filter, if the has reached a defined value. The filter function is then disabled, such that its effectiveness is reduced (Figure F 11) . The
Filter disposition
Consideration in relation to an appropriate arrangement of various filters as protective or working filters (purification filters), e.g. a return line filter of adequate size at the point in the syste