During calibration, the following values are determined for a sensor. Zero order

Question

During calibration, the following values are determined for a sensor. Zero order uncertainty = 0.21 mm Repeatability error = 0.37 mm The measurements taken during the experiment show an uncertainly of: Experiment uncertainly 0.64 mm What is the overall uncertainty of the experimental result? [Assume 30 measurements were taken both in the calibration, and in the experiment Review your experiment 1 calculations for a hint. Use a 68% uncertainly level to express your answer to this question. Assume all given are at the 68% level] What is the overall instrument uncertainly? 0.4170 0.25 margin of error 0.01

Explanation / Answer

overall instrument uncertainty = 30*sqrt(0.21^2 + 0.37^2 +0.64^2)

= 23.05515 mm

zero order uncertainty 0.21 repeatibilty error 0.37 experiment uncertainty 0.64 n 30 overall instrument uncertainty 23.05515

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