Infill stress sensor

The invention relates to an infill stress sensor which is capable of measuring the stress from each direction in an infill and performing remote transmission so as to accurately detect the filling effect. The infill stress sensor comprises a housing in which an integrated circuit module is arranged; a core body is arranged in the housing; a stress element is arranged at the upper end of the core body; the core body is connected to the integrated circuit module; and the integrated circuit is also connected to an upper computer arranged outside the housing. Furthermore, the housing is formed by connecting an upper housing and a lower housing; and the stress element is arranged in the upper housing, while the core body is arranged in the lower housing. A sealing ring is arranged at the joint of the upper housing and the stress element. A down-lead is arranged on the lower housing and a rubber sleeve is arranged on the down-lead. Besides, the sensor core body is a weighing sensor core body.