Equipment for detecting percentage elongation after fracture and percentage reduction of area and measuring method thereof

The invention discloses equipment for detecting percentage elongation after fracture and percentage reduction of area and a detection method thereof.The equipment comprises a control system and a measuring component, the measuring component comprises a measuring cavity, and a fixed clamping block and a sliding clamping block are sequentially arranged in the measuring cavity in the length direction; the top of the fixed clamping block and the top of the sliding clamping block are each provided with a clamping groove matched with the end of a fracture sample, a digital display vernier caliper is arranged at the position of an opening of the measuring component, vernier clamping jaws on the two sides are arranged on the digital display vernier caliper in a sliding mode, a digital display meter is arranged on one vernier clamping jaw, and the control system comprises a display screen, an operation panel and a digital display system. The digital display system is electrically connected with the display screen, the