LEEB HARDNESS STANDARD WITH LASER MEASURING

Shi Wei, Zeng Wu, Li Qingzhong

Abstract

The paper describes the principle, structure and performance of a Leeb Hardness Standard with Laser Measuring (HLSlaser). The range of the standard is (200 ~ 900) HL. At the same time, uncertainty of the standard has been evaluated, of which relative expanded uncertainties (<i>k</i> = 2) are at range of 1.0% ~ 1.2%. It has been done to make comparison of HL values tested by the standard and by six HL testers made by EQUOTIP Company of Switzerland with 6 HL blocks manufactured by the same company.

Keywords

Leeb hardness standard, laser, Doppler, uncertainty

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IMEKO-WC-2012-TC5-O8.pdf

DOI

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IMEKO TC

TC5 - Hardness Measurement

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