high accuracy self calibrating temperature logger

qwerty15 · Post by **qwerty15** » Thu Oct 11, 2007 6:09 am

hi guys,

what is the cheapest way to design a high accuracy self calibrating temperature logger? Could I use opamps and maybe 2 RTDs to achieve this? The recording temperature range is -40F to 112F...what do you guys think? I appreciate your help in advance.

are there any micros out there that can make this really easy? for example EEPROM, A/D, self calibrating all in one?

Thanks!

Engineer1138 · Post by **Engineer1138** » Sat Oct 13, 2007 6:59 am

Define "high accuracy."

dyarker · Post by **dyarker** » Sat Oct 13, 2007 8:02 am

LM-34 accurate enough?

MrAl · Post by **MrAl** » Sun Oct 14, 2007 5:37 am

Hi,

I also have to ask what the time frame is. For example, you want
to measure temperature over a period of 2 hours, or 2 days, or
2 months, etc.

T&L Publications

high accuracy self calibrating temperature logger

high accuracy self calibrating temperature logger

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