The invention relates to the technical field of sensors, and discloses an inductive displacement sensor, which comprises a substrate, two pairs of rectangular receiving coils fixedly arranged on the surface of the substrate and a vortex linear exciting coil, an initial plane coordinate
system is created by taking the center of the substrate as an original point, and the two receiving coils in each pair are arranged in parallel; the
excitation coil is located on the side, away from the substrate, of the receiving coil and is parallel to the surface of the substrate. In the initial state, when the projection of the center point of the exciting coil on the substrate coincides with the original point of the initial plane coordinate
system and the receiving coil has displacement in the xy plane relative to the exciting coil, the two pairs of coils output
relative displacement in the x direction and the y direction respectively, and decoupling of the
relative displacement in the two directions is achieved at the same time. Displacement measurement in two directions can be carried out at the same time, high-precision and high-stability measurement of displacement signals is achieved, the good dynamic response characteristic is achieved, and errors caused by movement of mechanical parts are reduced.