Apparatus and method for determining metal fatigue crack closure by hammer peening

摘要

An apparatus and method for determining metal fatigue crack closure due to hammer peening. A power supply device includes an outer shell, a power supply device, and a potential detection device, and the power supply device includes a battery box provided in the outer shell and a power supply terminal fixed to a bottom end of the outer shell. Connected to a power supply terminal fixed to the bottom end of the outer shell through a wire, the potential detection device includes a micropotentiometer, a chip, a voltage input terminal, and a spring wire, and the micropotentiometer and the tip are both outer shells. A voltage input terminal is provided inside, a micropotentiometer is connected to the voltage input terminal via a spring wire, a control element is provided on the chip, and the micropotentiometer is provided on the chip. Connected to potentiometer. [Selection diagram] Figure 8