BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI - Universitatea ...

164 Constantin Chirita et al.
The V part generates the oil flow which is introduced in the linear hydraulic
oil CH. We can look on the evolution of the following parameters: pressure p,
speed v, movement x.
We can observe that the speed is stable around the value of 0,003 mm/ min
and the final value of XRD is 0,995 mm.
Fig. 3 – Data acquisition application in Lab View.
The feedback time of the system is very short approximately 0,003 s, as we
can see in Fig. 2. After the collecting data procedure from the experiment,
where was used a LabVIEW interface with NI DAQ 6024, for the speed and
movement we obtain the following characteristics, see Figs. 3, 4 and 5.
Fig. 4 – Piston movement after a period of nr. of steps generated by the pump.