Objet de la recherche «*».

The majority of measuring systems are analogue. In theory they have an infinitely high accuracy that is practice is however limited by the reading accuracy (resolution) and costs. Analogue measured va

Quotient of the complex amplitudes of acoustic pressure and acoustic flow (acc. DIN 1320). The acoustic impedance describes the acoustic behaviour of a component. For hydraulics this quotient comprise

Adaptation (tracking) e.g. of the gain to changes in parameters in the controlled subsystem.

External gear pumps are the simplest and most economical hydraulic pumps and are very suitable for simple low-pressure drives. They operate with high reliability and are also robust in operation. They

Pressure in an installation in relation to zero pressure in a completely empty space (100 % vacuum) (according to DIN 1314) (Figure A 5) .

Hydraulic and pneumatic drive and control technology – collectively termed fluid technology – is a comparatively young specialist area of drive and automation technology that only started to become us

Back pressure valve with the task of preventing pulling loads on cylinders or motors from causing uncontrolled lowering. For this purpose, it is pre-loaded to a higher pressure than the pressure corre

Pressure that is produced after filling, e.g. on the gas side of a hydraulic accumulator or on pumps on which the suction side is pressurised.

Delivery flow pulsation

Flow rate measurement of the Bernoulli force of a flow rate on a body, e.g. a Prandtl tube ( Figure S 78 ). This is then used to measure the static pressure p 1 and the dynamic pressure p 2 and thereb