Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
x_dadu

etaj intrare voltmetru de alternativ 1mV - 1000 mV

Recommended Posts

Am si eu nevoie de o schema (am cautat ceva da nu am gasit ce vreau eu) cu care sa pot masura tensiuni alternative mici, de la 1mV in sus, la frecventa retelei. Banuiesc ca ceva cu 1-2 AO-uri. Ma intereseaza in special pentru a masura caderea pe un shunt la reteaua de 220 pentru masurat curent/consum, dar si pentru ca nu am la aparatu de masura scala mica pe Vca.

Share this post


Link to post
Share on other sites

pentru ca acest topic sa nu fie fara rost, nesinchisindu-se nimeni de un raspuns, am gasit ce vroiam si pun si aici.

E vorba de redresare fara prag, dioda fara prag cum zice in seria de articole din revista Tehnium 12/1984, 1,2,3,4/1985. Un alt exemplu practic, e un multetrul cu C520D din tehnium 11/1988 pagina 10 .

 

Posted Image

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.