Measurement Uncertainty Evaluation Computation Using MATLAB

Leow, Shell Fang (2009) Measurement Uncertainty Evaluation Computation Using MATLAB. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is to develop a program by using MATLAB in uncertainty of measurement. Error and uncertainty happens in every measurement no matter how carefully a result of measurement is taken. It is impossible to eliminate the errors occurred in a particular measurement. What can be done is to minimize the error when a reading is taken during the measurement. Uncertainty plays an important role in measurement as it will affect the quality of a particular measurement. First of all, the measurement of gauge block is taken. Temperature and humidity of the environment also being recorded. There are the factors to affect the uncertainty in measurement. Error calculation and uncertainty calculation are being carried out. Matlab program has been developed based on the data obtained. It is an ambitious program which contains hundreds of commands to do mathematics. M-file is being used in order to key in the coding and the program is executed in the command window. Discussion has been done on the parameters of uncertainty in measurement. Conclusion is included in the report in the final part.

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