Self-sensing elastic energy storage and ejection release testing device for super-elastic memory alloy wire

The invention discloses a self-sensing elastic energy storage and ejection release testing device for a super-elastic memory alloy wire. The device is mainly composed of a bottom plate, a gantry vertical plate, a sliding table vertical plate, an electronic ruler support, an upper cross beam, a lower cross beam, a laser sensor support, a guide pipe, a target foam plate, a sliding table, a stepping motor, a force sensor, an electromagnet, a clamping bolt, a laser sensor, a spring self-resetting electronic ruler, a resistance signal conditioner and an ejection body. In the device, a hyperelastic memory alloy wire is fixed between two wire clamps, an electromagnet is powered on to attract an ejection body to clamp the hyperelastic memory alloy wire, a stepping motor drives a sliding table to move downwards to store energy for the hyperelastic memory alloy wire, the resistance, force and displacement of the hyperelastic memory alloy wire are detected, and the electromagnet is powered off to eject the ejection body