Initial contamination
Contamination of the hydraulic fluid in a hydraulic system prior to the first flushing. It comprises the contamination that is in the hydraulic fluid itself prior to filling the hydraulic system and t
Remote control
Control system on which the operating position is separate from the fluid technology systems such that the operating elements need to be operated over a greater distance. Operation can be using both h
Position sensors
Switching elements that after contact or contactlessly output position-dependent signals. As a rule they operate electrically. For electrical position switches a differentiation is made between contac
Pressure ratio valve
Valve that maintains the ratio of outlet pressure to inlet pressure constant.
Pressure pulse
Brief pressure rise and pressure drop or vice versa (DIN 24 312).
Pressure rise
Time-dependent pressure change from a lower value to a higher value (DIN 24 312).
Doppler effect
Perceivable and measurable change in frequency during the propagation of waves caused by the relative motion between the source and observer. Four different cases must be taken into account for the ca
Digital system
Expresses the related variable for the information to be displayed as the sum of smallest units e defined for the system ( digitising ).
Resistor circuits
Another comprehensive term for control with throttle, which includes all types of dosing of flow rates by changing flow resistances, as they are primarily also basic elements of .