help

[alireza]

Hi
A. I am an Iranian student of electronics
I searched many sites but did not get to a solution
Thermostat with type K thermocouple is my project that is processed with the AVR range0-1000 degrees
The project should be strengthened with the LM324
If possible, please help me.
Thanks

[AJISH ALFRED]

Hi Alireza,

LM324 is an op-amp and thermocouple as a device generates voltage equivalent of the temperature. All you have to do is to  amplify the voltage from thermocouple using opamp and interface it with the ADC of the microcontroller. Then you have to standardize it.

I dont know where you are getting stuck at, is it code, circuitary or what ?

[Randall G. Allman]

Alireza

 

You will also need cold junction compensation.  Google thermocouple cold junction compensation.

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