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Device that measures and displays the liquid level in a tank.

Design element that on piston pumps supports the piston at the sliding surface (swash plate, raceway). To reduce the contact force and therefore the friction the slipper is designed such that it can a

Fluid seal for rotating shafts that comprises two elements made of non-elastic materials that are pressed against each other by spring force. One element rotates with the shaft, while the other is mou

Friction that is produced when two surfaces rub against each other. Friction can vary very significantly in fluid technology, depending on Which seal material is used, Which seal shape is used, The ma

Measuring amplifier on which a stable DC generator supplies the transducer with a supply voltage. This voltage is changed by the load on the sensor and supplied to the input stage on the amplifier. Th

Electromagnet operated with DC. The DC solenoid only reaches its nominal current some time after switching on. For this reason the force initially increases more slowly, and it therefore switches more

Various processes are controlled such that they take place at the same time. Applied to the synchronisation of cylinders often used in hydraulics, this means: a circuit that controls two or more cylin

Closed loop position control system with several actuators that move synchronously. In control systems there are various ways of realising this action: in the simple form the first actuator can be ope

Double-acting cylinder with two piston rods. The velocity is the same in both directions if both piston rods are the same thickness and the same flow rate acts on both piston areas. ( Hydraulic cylind

Incremental displacement transducer that comprises a glass scale in which a series of graduations are cut; these graduations are scanned optically ( incremental position measurement ).