I have been working on a project to read temperature from a thermocouple using a Gertboard/Rpi.
I have a code written in C which I have tested using function generator to ensure its operation and it does work as I expect.
I have been using LTK001 which is a cold junction compensator and matched amplifier in order to have values my ADC is able to read...
Now, the thing I am confused about at the moment is how I manage to match the outputs from amplifier/compensator to the needs of gertboard
I have an equation in my code that makes my limits operate between 0v and 3.3v. my limits are -65 --> +130. So 0v = -65 and 3.3v = +130.
What I am confused about is how to I work out what mv/degree c I need to produce from my amplifier/compensator circuit for it to match with my gertboard. If that makes sense ?