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Forums
Engineering
General Engineering
When does the calibration uncertainty contribute to a measurement uncertainty?
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[QUOTE="fonz, post: 6380416, member: 379378"] Often a calibration certificate for an instrument has the error found during the calibration as well as the uncertainty associated calibration itself. I'm reasearching uncertainty calculations using the GUM 1995 method and I haven't found one yet that includes the uncertainty of the calibration result as a source of measurement uncertainty for a particular instrument. Only uncertainty derived from the error found by the calibration process is used. Is there a reason for this? Is it likely because in most cases there is a Test Accuracy / Uncertainty Ratio greater than 4:1? [/QUOTE]
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Forums
Engineering
General Engineering
When does the calibration uncertainty contribute to a measurement uncertainty?
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