Evaluation of Uncertainty Measurement with Intelligent Contact Type Interferometer

Abstract:

An evaluation is conducted to the uncertainty measurement with contact type interferometer after intellectualized improvement. CMOS sensing photographing technology and computer technology are applied to the improvement of contact type interferometer. A mathematical modeling is established by taking pixel number as reading unit and gauge block length comparative measurement method as means. The purpose is to analyze the source of measurement uncertainty, estimate the standard uncertainty of input, evaluate and set forth the expanded uncertainty. The result of evaluation is superior to the level of measurement uncertainty before improvement.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 348-352
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.348
• Online since: July 2013
• Authors: Jin Hai Li, Xing Long Wang, Suo Sheng Cao, Zhan Biao Song
• Keywords: CMOS Photographing, Comparative Measurement Method, Gauge Block, Length, Uncertainty of Measurement

References

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[2] JJG 146-2011. Verification Regulation of Gauge Block. National Metrological Verification Regulation. (In Chinese).

[3] JJG 101-2004. Verification Regulation of Contact Type Interferometer. National Metrological Verification Regulation. (In Chinese).