Flow control valve
Throttle valve with adjustable throttle ( measuring throttle , A P), in which the flow remains constant through the combination of the valve with a control throttle (, A R), regardless of the changing [...] takes place under the respective load pressure plus approximately 5 bar; therefore, with less energy loss than with 2-way flow control valves (cf. throttle control). To configure the circuit of flow control [...] required must therefore be removed from the circuit via the pressure-limiting valve for the system; i.e. with high losses (cf. throttle valve). 3-way flow control valve : The measuring throttle and the control
Pressure measuring procedures
electrical measuring procedures are available for conducting the measurement. In hydraulics : In keeping with its significance in hydrostatics as one of the most important parameters, pressure is also one of [...] operation. For this purpose, mechanical measuring procedures ( Pressure gauge ) as well as methods with an electrical output are used in which resistance measurement using strain gauges and the piezoresistive
Program
n is made between a machine program and a part(s) program whereby the latter is a program created with a view to manufacturing a specific part. An RTDP electronic data processing system : Logical and complete [...] complete sequence of instructions (work specifications) intended to provide a solution for a task with the help of a computer . The program is stored in the system's main memory. It provides the data to
Centrifugal pump
Pump where the increase in energy associated with a medium is largely dependent on the kinetic energy applied to it. For flow rate and pressure , it is a case of: where D = profile diameter, u = circu
Flow division
multiple consumers in a defined ratio from one pump: The most commonly used is the flow divider (valve) with two subflows. In the case of multiple subflows or greater accuracy rotary flow dividers are used.
Measuring amplifier
n or undergo further processing in a computer. A distinction is made between measuring amplifiers with carrier frequency for inductive sensors and DC amplifiers for active sensors, which produce their
Valve efficiency
comprised of form-related losses (form drag ratio) and throttle losses , are predominant for valves: with p A = system pressure. It is taken from the Δp -Q characteristic curve ( pressure loss/flow rate
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
Amplitude response
value of the circular frequency ω or against the logarithm of the circular frequency ω/ω o normalised with the natural angular frequency ω o and is called the amplitude plot (Figure A 14) (DIN 19 226).