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Multiplicare semnal senzor Pt100 ?

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As dori sa multiplic semnalul unui senzor PT100 pentru 2 displayuri ( controllere ) . Stiti vreo metoda simpla?

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Simplu si de calitate, dar nu neaparat ieftin, este sa pui PT100 intr-un ADC, iar apoi acel semnal digital il comunici intre cate controllere vrei tu. Vezi site-ul Maxim si Linear. Cred ca au si altii, dar eu nu stiu.

 

Ar merge, dar nu stiu cum mai faci cu precizie compensarea cablului, asa: convertizor rezistenta-tensiune.

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Quick and dirty: divizor rezistiv:

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Daca precizia nu este foarte importanta, ci doar plaja de temperatura. Versiunile 2 si 3 sunt de implementat. Evident, iesirea de tensiune o pui la controllere, care vor fi in paralel.

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Interesant , dar displayurile au doar intrare analogica ..

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Salutare, ce fel de controlere folosesti; nu au iesire unificata ca sa le poti cascada ?

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