Monitoring
Review of certain variables in terms of complaints with predetermined values, ranges or switching states. The variables to be monitored can be measured directly or may be the result of an evaluation (
Two-position valve
Valve with two switching positions. In the case of the directional valves these are 2/2, 3/2 and 4/2 directional valves.
Hardness of materials for seals
Hardness is the resistance of a body to penetration by another. With materials for seals, this is measured as Shore A. For seals , the chosen degree of hardness would be a Shore A score of between 70
Three position valve
Valve with three switching positions (e.g. forward-stop-backward). The number of positions is stated after the number of ports, e.g. 4/3 directional valve: 4 ports, 3 switching positions.
Pressure ranges in fluid technology
In hydraulics a differentiation is generally made between four pressure ranges within which the allocation of pressures is however a little scattered: Low pressure (LP): Pressures up to approx. 100 ba
Measuring amplifier with carrier frequency
Measuring amplifier, in which an AC generator supplies a with a supply voltage with a constant amplitude and frequency. Where the transducer is strained at the outlet of an amplitude-modulated AC sign
Hydraulic motors subject to secondary control
Process to control the rotation speed by adjusting the torque with a reversible hydraulic motor in a system with impressed pressure ( constant pressure network ( Figure S 43 ). The rotation speed of t
Elastomers
Material that can be deformed elastically, that is it can be stretched to a significant extent and after relief it will quickly and practically completely return to its initial shape. Elastomers compr