Dear All About Circuits er's
i started a project to make a egg incubator machine
the most important thing is the temperature accuracy whuch must be 0.1 degree Fahrenheit
i selected the precision thermistor from ussensor which is 30k ohm and generated the look-up tables for temp. Vs. resistance with the target accuracy
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=615-1004-ND
i want you to suggest the circuit that i will integrate with the microcontroller
how to connect the thermistor and the ADC should be used to get that accuracy with reduced self heating effect and long term stability
should i reduce the ohms of the sensor ? selecting for example 10k ohms ??
and an important thing is the calibration ability through cermet variable resistance
any recommendation will be much appreciated
thanks in advance
i started a project to make a egg incubator machine
the most important thing is the temperature accuracy whuch must be 0.1 degree Fahrenheit
i selected the precision thermistor from ussensor which is 30k ohm and generated the look-up tables for temp. Vs. resistance with the target accuracy
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=615-1004-ND
i want you to suggest the circuit that i will integrate with the microcontroller
how to connect the thermistor and the ADC should be used to get that accuracy with reduced self heating effect and long term stability
should i reduce the ohms of the sensor ? selecting for example 10k ohms ??
and an important thing is the calibration ability through cermet variable resistance
any recommendation will be much appreciated
thanks in advance