Theoretical and Experimental Estimation of Uncertainty of Measurement during Calibration of CMM

Authors

  • Atul Dev Centre for Advance Mechanical Engineering Defence Electronics Applications Laboratory, Dehradun, India
  • Ved Parkash Centre for Advance Mechanical Engineering Defence Electronics Applications Laboratory, Dehradun, India
  • Smriti Tandon Graphic Era (Deemed to be University), Dehradun, India

Keywords:

CMM, Calibration, Uncertainty, Length Measurement, Probability Distribution.

Abstract

In the present paper we briefly discuss the universal (theoretical) and experimental methods of estimation of
uncertainty of measurement. As an application we have taken the case of manual 3D co-ordinate measuring
machine of with 1 m least count and this machine has been calibrated with the help of a Step Gauge. The study
concludes that both universal and experimental methods give fairly identical results and hence universal method
can be used easily for the uncertainty calculation of such machines. This is first of its kind of work where
theoretically estimated uncertainty value has been compared w.r.t. the practically observed value.

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References

Catalogue No. 6100/E/01/2000 (2000). Kolb & Baumann GMBH & Co. KG, Precision Step Gauge- KOBA

Step, Aschaffenburg, Germany.

Journal of Graphic Era University

Vol. 8, Issue 2, 113-121, 2020

ISSN: 0975-1416 (Print), 2456-4281 (Online)

Catalogue No. 1000/97E (1997), Kolb & Baumann GMBH & Co. KG, Gauge Block and Accessories,

Aschaffenburg, Germany.

Indian Standard, IS: 2984 – 2003: Slip Gauges – Specifications, Second Revision, Bureau of Indian Standards,

New Delhi.

NABL – 141 (18 July 2016), Guidelines for Estimation and Expression of Uncertainty in Measurement,

National Accreditation Board of Testing and Calibration Laboratories, New Delhi.

Shankar, N. (April 1999). Reducing Uncertainty in Measurement, Quality Today.

Taylor, B. N., & Kuyatt, C. E. (1994). Guidelines for evaluating and expressing the uncertainty of NIST

measurement results. United States Department of Commerce Technology Administration National Institute of

Standards and Technology.

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Published

2023-02-28

How to Cite

Dev, A., Parkash, V., & Tandon, S. (2023). Theoretical and Experimental Estimation of Uncertainty of Measurement during Calibration of CMM. Journal of Graphic Era University, 8(2), 113–121. Retrieved from https://www.journal.riverpublishers.com/index.php/JGEU/article/view/48

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