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Hydraulic speed control during which the hydraulic fluid flowing out of the actuator is throttled, e.g. by a flow valve in the return pipe.

As an independent valve : Pressure control valves are used to control or limit the system pressure in a plant or to switch in response to a signal pressure. Depending on the design a differentiation i

The assignment of parameter values to modules in a or control system with a view to a producing a desired behaviour (DIN 19 226, Part 5).

1. Product of the weight m and velocity v for a mass point: The impulse/pulse is vectorial variable; its direction is same as the velocity involved. The time differential quotient for the impulse/puls

International grouping of specialist associations (e.g. VDE) for the purpose of standardising terminology, components and regulations within the field of electrical engineering.

Damping D h of a hydraulic system which also applies in the absence of any leakage or friction: where A = piston area, σ = hydr. conductance of the system, m = total weight moved, V = oil volume under

In position measurement with ultrasound (US), a US signal is issued, which is reflected by the moving body. The duration of the system measured in this way is proportional to the distance travelled. A

Procedure that compares the output of a system with the results from the calculation in a model of this system and that sounds an alarm if deviations are excessive.

Actuation of the adjustment equipment in a pump/ motor by an electric motor. Permits in general adjustment speeds that are not very high. Mostly slower than electro-hydraulic adjustment.

Vertical height h in m of a column of fluid that, provided the density of the fluid is known, serves as a measure of the pressure that this column applies over the area of its base. The pressure head