Forum Elektroniczne • Przetwornik 4-20mA/0-5V?

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Forum Elektroniczne • Przetwornik 4-20mA/0-5V?

Strona 1 z 1

Przetwornik 4-20mA/0-5V?

: wt 25 lut 2003, 13:33

autor: norbi07

: śr 26 lut 2003, 21:56

autor: Łukasz

Proszę bardzo to jest przetwornik I/U na jednym wzmacniaczu operacyjnym o nieco szerszym zakresie.
Regulacja polega na podaniu na wejście prądu 4mA i ustawieniu napięcia wyjściowego na 0 poprzez kręcenie PR-ką 470, następnie podajemy 20mA i za pomocą PR-ki 33k ustawiamy odpowiednie wzmocnienie aby na wyjściu było 5 V. W przypadku zmiany wartości napięcia zasilania należy odpowiednio zmienić rezystor 1,6k. (schemat w załączniku)[/img]

: pt 28 lut 2003, 16:08

autor: norbi07

Dzieki za schemat - tylko nie wiem czy bede mogl go zastosowac u mnie bede sie musial zastanowic i policzyc blad pomiaru - Ale dzieki za pomysl.
Pozdrawiam
norbi07