help me, give me measure the gain of RTD nikel with op-amp 741, and give me analysis , thanks

 

The magic word could eventually help.

 

a "give me, give me" posting.

They usually do ask a little nicer but you have to admire the bruteforce of a direct approach.

 

Hello,

RTD's ususaly are PT100 or PT1000's wich are platinum resistors for temperature measurement.
Have a look in the links of the following page for more info:
http://educypedia.karadimov.info/electronics/sensorstemprtd.htm

Bertus

 

Someone has to say it, so it might as well be me: you are going to need a better opamp than a 741.

 

whether the circuit is wrong?

 

please read http://ww1.microchip.com/downloads/en/appnotes/00687c.pdf

 

please read http://ww1.microchip.com/downloads/en/appnotes/00687c.pdf

thanks