An interchangeable probe is used in instrumented hardness testing to penetrate the surface of a material in a controlled manner and determine its resistance to plastic deformation. The geometry and material of this test element are precisely defined to ensure reproducible measurement results. Different shapes — such as spherical, pyramidal, or conical geometries — allow the testing device to be adapted to various materials and hardness ranges. In plastics engineering, this element is mainly used in indentation based test methods, in which force and penetration depth are continously measured. This enables the determination not only of hardness but also of additional mechanical material properties.
Quality Assurance: Conical indenter for screwing into a hardness tester
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