Determining the Calibration Life of Measuring Devices by Means of Parameter Deviation Function

Abstract:

The paper presents the results obtained by performing an experimental study on specific measuring devices - caliper rules. The study is aimed at determining the calibration life of the measuring devices as a function of the metrological reliability, due to the internal parameter deviation. The experimental study conducted is aimed at determining the calibration life of external caliper rules of 150 mm, with depth rod and with a resolution of 0.05 mm. The experimental data is represented by the measuring errors, obtained for the same nominal size. Data is grouped in samples produced at a certain interval of time, by measuring the same dimension with a set of caliper rules. The conclusion which can be drawn from the research performed on the considered set of caliper rules is that the method for determining the calibration life based on parameter deviation can be used for establishing the appropriate moment for performing the calibration for a specific set of measuring devices. By performing the appropriate program in the case of a set of specific measuring devices, it is possible to test whether the values obtained for the calibration life in each case considered meet the requirements set in the appropriate standards. In the case presented in the paper, the pre-set calibration life proved to be earlier than necessary and the application of this method would reduce the entire costs of the appropriate operation.

• Periodical: Applied Mechanics and Materials (Volume 371)
• Pages: 695-699
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.371.695
• Online since: August 2013
• Authors: Ramona Clinciu
• Keywords: Caliper Rules, Metrological Reliability, Parameter Deviation

References

[1] U. Wiener, F. Vereş, Metrological reliability. Models and methods. (in Romanian) Quality of products and metrology. Bucureşti. 5 (1972) 265-271.

[2] R. Clinciu, Algorithm for the Simulation of Parameter Deviation, Bulletin of the Transilvania University of Braşov. 7(42) ( 2000) 65-68.

[3] R. Clinciu, M.R. Clinciu, Estimating the Calibration life for Measuring Devices, Academic Journal of Manufacturing Engineering. 10/ 2 (2012) 30-35.

[4] M.R. Clinciu, Estimating The Statistical Parameters For Data Samples In An Experimental Installation, Proceedings of ModTech 2009, Iaşi, România, 2009, pp.167-170.

[5] M.R. Clinciu, Analysis of the reliability of the water meters using the faults tree method, Proceedings of ModTech 2009, Iaşi, România. (2009) 171-174.

[6] V. Gh. Vodă, Methods for testing the normality of the measuring data. Applied. Bucureşti, XXVI(1)(1979) 11-14.

[7] I. Martinescu, I. Popescu, Reliability (in Romanian), Gryphon, Braşov, (1995).

[8] D. Kececioglu, Reliability Engineering Handbook, Prentice Hall, Englewood Cliffs, N.J., (1991).

[9] NTM 0-1-79. Official list of the main measuring instruments which need to be calibrated. Terms and charges, Editura Tehnica, Bucureşti, 1979 (in Romanian).