Thin foil strain gauge
strain gauge made of an approx. 5 μm thick metallic measuring grid (as a rule constantan or Modco) cut in a zig-zag pattern that is sensitive to strain in the longitudinal direction. Thin foil strain
State equations
If the alignment of the output variables to the input variables in a transfer element is described by a system of differential equations or differential equations and standard equations, by introducin
Centralised hydraulic oil supply
A series of different consumers is supplied with hydraulic oil from a central drive station (Figure Z 4a) and (Figure Z 4b). As a result, the total performance to be installed does not need to be spec
Elbow fitting
Fitting , which forms an angle of normally 90° between the connection openings. It is offered as a pipe or screw-in fitting ( pipe screw connections ).
Monitoring systems for hydraulic fluid
To monitor the state of a hydraulic fluid there are three variations, each with a different information value: Visual inspection : The colour of a pressure fluid (in particular mineral oil) is a measu
Circuit diagram
Illustration of a system with symbols (previously: switching symbols) to illustrate the order of the individual devices and their functional workflow. The circuit diagram must therefore allow the iden
Cam
Switching element for mechanical actuation whereby the gradient of the increase gives the transition time and associated acceleration, while the cam length determines how long the actuation effect las
Hydrostatic relief
Arrangement whereby a mechanical pressure is largely compensated for by an opposing hydraulic pressure. The hydraulic pressure is generally removed from the system in such cases. Example: hydrostatica
Error tolerance range
Bandwidth each side of the ideal characteristic curve in a measuring device that contains a systematic error as well as the random errors, provided it can be estimated (Figure F 6) . The description o
Volumetric efficiency
The volumetric efficiency describes the ratio of the effective (actually absorbed or issued) flow rate to the theoretical flow rate based on the displacement kinematics and the rotation speed. For pum