Fast stress-strain curve measuring system and method based on binocular vision

The invention discloses a fast stress-strain curve measuring system and method based on binocular vision. The system comprises a tester capable of exerting loads on a tested workpiece, a stress data collecting module, an image data collecting module, a data synchronous collection and control module and an upper computer, wherein the stress data collecting module comprises an A/D conversion module and a force-measuring sensor, the image data collecting module is connected with the upper computer and the data synchronous collection and control module, the stress data collecting module is connected with the data synchronous collection and control module, and the data synchronous collection and control module is connected with the upper computer. The effect of accurate stress and strain synchronization in stress-strain curve data is achieved well, and non-contact fast and accurate measurement is achieved.