I need to acquire the temperature of a box thanks to a thermistor. I am wondering how to do that with a really high precision. Here are the caracteristics of the thermistor:
T° Thermistance
-55°C 500K
-30°C 135K
50°C 3.9K
And here are the wanted specification:
T° Max error
-40°C 0.8°C
0°C 0.5°C
40°C 0.3°C
I already though about a divider entering an OPamp and then using an active filter but I think it will not be precise enough due to the other resistance error of the divider and of the error on the alimentation of the divider.
Does anyone have an idea to measure the thermistor with this precision?
Precision I need to convert the thermistor value into a 0-10V voltage.
Edit: It will actually be directly read with a DAQ, then it is okay now I do not have to do the schema anymore. Thank you all