VERIFICATION RESULTS OF LEEB HARDNESS INDICATING DEVICES FROM DIFFERENT MANUFACTURERS USING THE LEEB HARDNESS REFERENCE VOLTAGE SIGNAL

Nae Hyung Tak, Gun Woong Bahng, Tag Gyu Kim
Abstract:
The indicating device of a Leeb hardness tester is an important device that determines the performance of tester. As such, the indicating device needs verification just like the depth-measuring system of a Rockwell hardness tester. This paper presents the verification results of indicating devices from different manufacturers. For the verification, a calibrator to output the reference voltage signal was designed and used for the test. The results showed that the maximum deviation was 24 HLD.
Keywords:
hardness, Leeb Hardness, verification of indicating device
Download:
IMEKO-WC-2015-TC5-170.pdf
DOI:
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Event details
Event name:
XXI IMEKO World Congress
Title:

Measurement in Research and Industry

Place:
Prague, CZECH REPUBLIC
Time:
30 August 2015 - 04 September 2015
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