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Scleroscope 
Summary
A scleroscope is a device used to measure rebound hardness. It consists of a steel ball dropped from a fixed height. The device was invented in 1907. As an improvement on this rough method, the Leeb Rebound Hardness Test, invented in the 1970s, uses the ratio of impact and rebound velocities (as measured by a magnetic inducer) to determine hardness.
See also edit
- Hardness – Measure of a material's resistance to localized plastic deformation
- Sclerometer – Instrument used to measure the hardness of a material
- Tribometer – Instrument that measures friction and wear between surfaces
External links edit
- Mechanical Properties of Metals
- Scleroscope Hardness Test
- Testing the Hardness of Metals Archived 2012-07-17 at the Wayback Machine