Star infiltration device, and method of measuring gravitational acceleration and soil-bearing capacity of a star

A star infiltration device comprising an infiltrator, and a rammer being provided inside the infiltrator, characterized in that

• the infiltrator sequentially comprises, in order from bottom to top, an infiltrator cone part, an infiltrator tip, an infiltrator power part and an upper plug;
• a conducting pipe is provided inside the infiltrator, and the rammer is disposed in the inner part of the conducting pipe, a ramming surface is provided at the bottom of the conducting pipe inside the infiltrator tip, and a lifting coil is provided in the inner part of the infiltrator tip;
• the distance from the lower end face of the lifting coil to the lowest point of the ramming surface in the inner part of the infiltrator tip is half the length of the rammer, and accelerating coils and a positioning coil are provided in the inner part of the infiltrator power part in order from bottom to top, wherein the accelerating coil comprises a plurality of groups, and the distance from the upper outlet end of the positioning coil to the cushion is half the length of the rammer;
• the lifting coil, the accelerating coil and the positioning coil are all disposed on the outside of the conducting pipe, a position sensor I for detecting the position of the rammer is provided in both the central part of the lifting coil, the positioning coil and each accelerating coil, a position sensor II for detecting the position of the rammer is provided at a position above the ramming surface inside the infiltrator tip, and a position sensor III for detecting the position of the rammer is provided at a position at the upper outlet end of the positioning coil;
• the infiltrator is connected to an infiltrator bracket, the infiltrator bracket comprises three legs, a limiting sleeve, a bracket flange and a leveling ring, the legs are fixed to the lower part of the bracket flange, the bracket flange and the leveling ring are connected to each other by a first group of two leveling shafts on the same axis, the limiting sleeve is provided with a limiting ring at its upper end, and the leveling ring is connected to the limiting ring by a second group of leveling shafts, the axial direction of the second group of leveling shafts is in a direction perpendicular to the axis of the first group of leveling shafts, the infiltrator is arranged in the limiting sleeve, and a plurality of limiting reeds are provided in the limiting sleeve, the plurality of limiting reeds are provided at equal intervals along the circumferential and axial directions of the limiting sleeve, a bearing is provided at the end of the limiting reeds, and a limiting groove is provided outside the infiltrator, while the bearing is disposed inside the limiting groove at a corresponding position.