The utility model provides a
stroke type weight sensor, which comprises a shell used for being connected with a fixed platform and an inhaul cable used for being connected with a movable platform moving relative to the fixed platform, and further comprises an induction column used for inducting the
stroke of a sliding block, and the induction column is vertically and fixedly arranged in an induction cavity reserved in the shell. The sliding sleeve is assembled on the induction column in a sliding manner; the sliding sleeve is linearly restrained outside the induction column and can linearly move in the induction cavity along the straight line of the induction column; wherein the induction column is a columnar induction
capacitor, the fixed end of the inhaul cable is fixed to the fixed platform, the movable end of the inhaul cable penetrates out of the shell, the gravity direction of the sliding sleeve coincides with the extending path of the inhaul cable, and when the inhaul cable is pulled, the sliding sleeve synchronously moves on the induction column. All parts in the device act cooperatively, so that the stability and accuracy of the detection process are ensured, the interference of the external environment can be effectively resisted, and the service life of equipment is remarkably prolonged.