Mechanical hardness testing is fundamental in the evaluation
of the mechanical properties of metallic materials
[1]. In recent years, the related researches of Brinell hardness
measurement have been extensively made, and some
new measurement methods are presented, such as ultrasonic
Brinell hardness measurement and electromagnetic
Brinell hardness measurement. However, because of its
high precision, the force loading Brinell hardness measurement
is still currently the most authoritative measurement
method in the measurement community. Using different
force loading modes such as weight loading, hydraulic
loading, lever loading or linear motor loading, Brinell hardness
tester applies a rated stress to the surface of the measured
material, and then survey crew measure the
diameter of corresponding indentation and calculate the
material Brinell hardness based on mechanical equations