You don't have a cold junction compensation.
Have a read:
https://www.google.com.mx/url?sa=t&...sg=AFQjCNERrUJhwis4dh-RROaBHrlXtFxpdQ&cad=rja
I use the digital thermometer to calibrate my project, digital thermometer has it's own sensor and my project has it's own sensor, Both sensors exposed to the same heating source .
The table is the results of my experiment , first column is temperature of digital thermometer and the second column is the output voltage of operational amplifier.
I use the digital thermometer to calibrate my project, digital thermometer has it's own sensor and my project has it's own sensor, Both sensors exposed to the same heating source .
The table is the results of my experiment , first column is temperature of digital thermometer and the second column is the output voltage of operational amplifier.
What if I use INA118 op-amp !
Is it necessary to add cold junction compensation?
What if I use INA118 op-amp...
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