Delay valve
Pneumatic time element, which has the same construction as an RC element, i.e. a combination of a throttle valve and a small air container. After the container is filled, a valve is reversed ( Figure
Calculating the sound power
The various methods of noise measurement. are available to determine the sound power. The calculation of the sound power may be performed by measuring the sound pressure in a soundproof room or in a f
Available force
The effective force F 2eff at the piston shaft for a cylinder . This is derived from the piston area A and the pressure p, having subtracted the friction forces F 2R associated with the seals and guid
Two-point behaviour
Is present if there are elements that allocate two value ranges of an input signal in a steady state to two different values of the output signal (two-point elements) (DIN 19 226).
Chopper
Measurement technology : Device that converts a continuous measurement signal into a pulsating alternating current. Hydraulic systems : In the same vein, the chopper is used for hydraulic devices, cre
Ripple
Periodic fluctuation of a value above or below or around the work value.
Shuttle valve
Check valve with two inlets and one outlet. The pressurised inlet is automatically connected to a shared outlet, while the other inlet is blocked ( Figure W 4 ).
Contamination measurement
The standard process to measure the number of particles is currently automatic particle counting on an opto-electronic basis (e.g. HIAC), but this does not specify the size of the particles. In contra
HL oils
Term used for hydraulic oils with anti-ageing and corrosion-protection properties for systems subjected to a high thermal load. Viscosity index 95 to 105. (requirement standard DIN 51 524, Part 1).