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Y

0 ULPHDHOHFWULFLQWHUPHGLDUDispozitivul deP VXUDW

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X

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Aparate de P VXUDWelectrice

Metode deP VXUDUH

Principiul deIXQF LRQDUH

Precizia deP VXUDUH

Utilizare

NaturaP ULPLLP VXUDWH

aparateindicatoare

IXUQL]HD] YDORDUHDP ULPLLP VXUDWHsub forma unei

pe un dispozitiv de citire GLUHFW LQGLFD LLvizuale

aparatecomparatoare

GHWHUPLQ P ULPHDGHP VXUDW prin cu una VDXPDLPXOWHP VXUL

FRPSDUDUHGLUHFW

aparateanalogice

VHPQDOXOHOHFWULFDF LRQHD]GLVSR]LWLYXOGHP VXUDWvQ YDORDUHDP ULPLLGH P VXUDWILLQGLQGLFDW VXEIRUPD unei sau

vQID D XQHLVF ULJUDGDWH

modcontinuu

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aparatenumerice

- semnalul electric este discreditat, DF LRQkQG ODDQXPLWH intervale de timp) dispozitivul de P VXUDWYDORDUHDP ULPLLGHP VXUDW HVWHDILúDW QXPHULF

discontinuu

FODV GHSUHFL]LH0,20,51,01,5; 2,5; 5

ampermetrevoltmetrewattmetrevarmetre

aparate de laborator (clasele 0,1 - 0,5)aparate tehnice (clasele 1 - 5)aparate de tablou (clasele 0,5 - 5)

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0 ULPLGHLQIOXHQ

0 ULPLcaracteristice

mediului

0 ULPLperturbatoare

electromagnetice

Temperatura

Presiunea

Umiditatea etc.

&kPSXULHOHFWULFHúLPDJQHWLFH

Semnale perturbatoare transmiseSULQUH HDXDGHDOLPHQWDUH0 ULPLSURSULLRELHFWXOXLVXSXVP VXU ULLGDUQHGRULWHvQSURFHVXOGHP VXUDUH

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Aparat de P VXUDW0 ULPHGHP VXUDW Semnale deLHúLUH

Comenzi0 ULPLGHLQIOXHQ

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x X1 XnXn-1X2

y

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β1

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X

Xa Xa1

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A, B, C, D

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convertoare de intrare

convertoare intermediare

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curent - tensiune

tensiune - curent

putere - tensiune

WHQVLXQHIUHFYHQSURSRU LRQDOHGHVFDUliniare_________

radical

integrator, derivator etc.

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