0
\$\begingroup\$

I have the MG811 CO2 sensor and can use it in genrell. But for me the function of the temperature compensation (Pin "Tcm / tCom") is not quite understandable.

Here is the circuit of the sensor: enter image description here And the link to the Datasheet of the sensor itself.

Does the value serves for further processing in software or is it only used as information (Compensation already takes place in the hardware)?

\$\endgroup\$
0
\$\begingroup\$

The temperature value can be used for compensation by external analog or digital means. The EMF follows the data sheet nominally, so the temperature and humidity dependencies are not extreme- chances are it’s not necessary in some applications.

The “hardware” is just an electrolytic (Nernst) cell and a heater, nothing sophisticated.

|improve this answer|||||
\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.