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Originally Posted by unregistered
nice links Ben, did you read them ?
now I get flicker free resolution of 0.01°C with a Fluke 2180A, on eBay for $80 or so, with an instrument accuracy of ±0.02° after cal
but no, clever Ben is going to re-define low-cost high-resolution temperature measurement devices
Ben, why do I make THESE kinds of posts ?
So that others, less informed, do not mistake your commentary for useful, productive, or realistic
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Hi Bill, I decided to watch this thread rather than be part of the discussion, probably to steer clear of your grumpy mood. LOL
A couple of comments and questions if you dont mind.
How do you calibrate your Fluke and does it have any output that can be logged for example?
I agree totally with your reasoning on measurement obtaining and accuracy. Having been a design engineer on weather stations in the 'real world' rather than the theorists of professors, then obtaining reasonable accuracy in temperature measurements is difficult to obtain in practice, using seperate discrete modules and components. This is true even when only 0.5C accuracy is desired.
In my situation, where it was a requirement to have ultra low battery powered data logging <15uA sleep and 50mA for 100mS (whole weather station), we had no choice but to go discrete, but otherwise the pro's know far better than we do.
As a final comment, it is good to have people in these forums that are knowledgable on various subjects, however cooler responses from all would make it a much friendlier place to frequent, and maybe others would learn more from this.