A force measurement sensor

A force cell sensor includes a complex elastic body which is made of a rigid liquid storage bearing body with a cavity and inert liquid which is contained in the rigid liquid storage bearing body cavity. A choke holder is fixed on the rigid liquid storage bearing body with an open for communicating with the inert liquid. The other end of the choke holder is directly mounted with a measuring cell which is communicated with an external measuring circuit. Another technical scheme is that the choke holder is connected with a cutoff valve by connecting pipe. A measuring cell which can transform hydraulic variation into electrical signal variation is mounted on the cutoff valve, and the measuring cell is communicated with an external measuring circuit. A cutoff valve rod whose two ends are provided with conical seal rods is provided in the cutoff valve. One end of the cutoff valve rod is sleeved with a positioning spring and the other end is connected with a top bar connecting sleeve with female thread in which a top bar device with spring is mounted. The force cell sensor has low height, small outer diameter, small volume and good long-term stability and little effect by environment, which is eligible for observation of prestressed anchor rope and bridge bearing.