Filter efficiency
by: It is superfluous if the β value is used. The efficiency of the complete filter includes, along with the efficiency of the filter element, also the flow losses, if necessary including the bypass valve
Filter disposition
some circumstances a pressure filter to protect a servo valve and a matched breather filter . Along with the considerations in relation to the installation location, also considerations on the filter size
Hydro-mechanical signal converter
from an electro-mechanical into hydraulic signals. This is mainly achieved by throttling an oil flow with controllable mechanical resistors or transforming the kinetic energy of an oil flow into hydrostatic
Thin foil strain gauge
strain gauges can be used as individual modules (see strain gauge ), however they can also be combined with calibration and compensation elements (Figure F 32) .
Sampling control circuit
Processes the discrete time signals from a sampler. It comprises a controlled subsystem with , a microprocessor, a sampler (mostly A/D converters) and a holding element (Figure A 9). The sampler samples
Operating point
operated. During the linearisation of the transfer function for transfer elements , in particular with non-linear characteristic curves, the coefficients of the equivalent linear equivalent function are
Micro-emulsion
and increase corrosion protection are added as very small droplets. Micro-emulsions are associated with a far higher degree of dispersion — even reaching the colloid dispersion range — than commercially
Linearity error
other ( a ); minimum quadratic deviation through the zero point ( b ); minimum quadratic deviation with two intersections (tolerance range method, c ).
Incremental position measurement
optically scanned (Figure I 9) . For absolute measurements, a zero mark can be added to the scale, with the counter returning to this each time.
Control concept in fluid technology
Controls can be designed in very different ways and with highly different controller structures to achieve a certain pilot control behaviour . It then becomes a case of control concepts. The control concepts