Fall 2012 ME 395 - GSI Josh Lacey

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 Temperature uncertainty

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CV5 Yorktown

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Join date : 2012-09-12

PostSubject: Temperature uncertainty   Fri Sep 14, 2012 8:00 pm

How do we find the uncertainty in precision for the temperature test since we only have one value for each data point (per instrument)? Also is there specs we can look at to find the accuracy uncertainty for the instruments?
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GSI Overlord
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PostSubject: Re: Temperature uncertainty   Sun Sep 16, 2012 1:00 pm

As mentioned during the lab, the reason for taking multiple measurements of everything is so you can always calculate a precision error. For the thermocouple, it actually outputs a standard deviation for you already at each data point (this is one of the columns in the text file), however for the thermometer, you would need multiple measurements to get an average and standard deviation. The overarching theme of this course is that you absolutely always want to take repeated readings for any measured quantity in all the labs.
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PostSubject: Re: Temperature uncertainty   Sun Sep 16, 2012 1:01 pm

As far as finding specs for all the instruments, those are all uploaded to CTools in the Resources section, Lab 1 folder.
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