Hardness measurement apparatus and hardness measurement method

Abstract

A hardness measurement apparatus including a storage device, a processing device, and an electromagnetic sensing device is provided. The storage device stores a hardness classification model. The processing device generates a control signal. The processing device outputs the control signal to the electromagnetic sensing device to operate the electromagnetic sensing device to sense a metal object in a non-contact sensing manner at a specific frequency. The electromagnetic sensing device outputs an electromagnetic sensing result of the metal object to the processing device. The processing device analyzes the electromagnetic sensing result to determine the impedance parameter of a sensing coil. The processing device determines a hardness of the metal object according to the impedance parameter the sensing coil and the hardness classification model. In addition, a hardness measurement method is also provided.

Dependencies are inferred from the claim text.