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    Cum se clasifica sistemele de achizitie de date?


    politehnica

    Sitemele de achizitie de date se clasifica avand in vedere doua criterii:

    • dupa conditiile de mediu in care lucreaza:

    ? sisteme destinate unor medii favorabile(laborator);

    ? sisteme destinate utilizarii in condii grele de lucru( echipamente

    militare, instalatii telecomandate, anumite procese industriale);
    • dupa numarul de canale supravegheate:

    ? monocanal, cu una din variantele:

    ? numai circuite pentru conversia directa a semnalului;

    ? preamplificator urmat de circuitele de conversie;

    ? preamplificator, circuite de esantionare-memorare,

    urmate de circuite de conversie;

    ? preamplificator, circuite de conditionare a semnalului

    si una din variantele anterioare;

    ? multicanal

    ? cu multiplexarea iesirilor unor convertoare analog-

    numerice, fiecare convertor corespunzand unui canal;

    ? cu multiplexarea intrarilor circuitelor de esantionare-

    memorare;

    ? sisteme de achizitie destinate multiplexarii semnalelor

    de nivel scazut.

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