Cutting ring fitting
. Cutting ring systems in accordance with DIN 2353, various forms of cutting rings are standardised in DIN 3861.
Laminar flow resistor
Flow resistor () with laminar flow, e.g. capillary gap. Has a largely linear flow rate pressure characteristic .
Settling time of pressure
Time that is required for a sudden change in the operation pressure with a pre-defined deviation to settle.
Servo valve
mechanical-hydraulic servo valves ( copying valve ) and electro-hydraulic servo valves: Valve produced with a high degree of precision, which has an electro-mechanical converter (e.g. torque motor ) as an input [...] Hz can be expected from a servo valve today at a damping of 0.6. However, that can only be achieved with extremely short control distances of a few tenths of millimetres. Therefore, a high pressure difference [...] the desired flow rate through this gap. Servo valves operate according to the principle of control with throttle . This control principle sees the maximum hydraulic effective power passed on from the valve
Frequency spectrum
Reflects the frequency distribution of noise including its intensity that together with the change over time describes a noise signal.
Pulse generator
Device which gives out pulses with a prescribed frequency at the output when a signal is pending at the input.
Hydrostatic machines
Collective term for pumps and motors which operate in accordance with the laws of hydrostatics (see also hydrostatic displacement machines).
Code translator
Converts the digital input signal in one code into a digital output signal with a different code (DIN 19 226).
Calculating the sound power
accordance with the DIN 45 635 Part 1 framework ( Figure S 11 ) and DIN EN 23 741. The sound power of a machine calculated under measurement conditions does not allow for a final statement to be made with regard
Operating mode of a control
control system by the operator and by feedback from the system to be controlled. Here in accordance with DIN 19 237 a differentiation is made between six variants: automatic mode: Operating mode in which [...] chain for this purpose. As rule the health and safety regulations require that the selector switch with which these operating modes are set has a lock to prevent misuse by the operator.