Testing device and method suitable for ignition growth characterization under explosive impact effect

The invention provides a test device and method suitable for ignition growth characterization under the explosive impact effect. The test device comprises a base, two impact columns and impact column sleeves. The striking column sleeve comprises a cylindrical sleeve body, and the sleeve body is arranged in the striking column sleeve mounting counter bore in a sleeving manner; one side of the sleeve body is provided with a lengthening conductor extending outwards in the radial direction, the lengthening conductor is clamped in the positioning bayonet, and the radial end of the lengthening conductor extends out of the base; and a through ignition hole is axially formed in the center of the sleeve body. Two striking columns which are coaxially arranged are installed in the ignition hole, and an explosive sample is placed between the two striking columns. An explosive sample filling groove is formed in the top face of the lengthening conductor, the radial outer end of the explosive sample filling groove is closed