Displacement type ultrahigh pressure sensor

The invention discloses a displacement type ultrahigh-pressure sensor which comprises a high-pressure cylinder, a pressure transmission rod, a connecting cylinder, a low-pressure cylinder, a round rod, a laser displacement sensor, a circular ring, a cylinder and an elastic body, and the elastic body is of a thick-wall cylinder structure with an end socket. During work, pressure is converted into displacement through the elastic body, the axial displacement of the elastic body is measured through the high-precision displacement sensor, and the relation between the pressure and the displacement is established. The performance of the sensor is determined by the material characteristics of the elastic body, the working pressure range of the sensor can reach 1000 MPa or above by selecting high-strength steel, and the sensor is high in precision, high in interference resistance, high in stability and suitable for static ultrahigh pressure measurement. 本发明公开了一种位移式超高压传感器，包括高压筒、传压杆、连接筒、低压筒、圆杆、激光位移传感器、圆环、圆筒、弹性体，所述弹性体是带