Inductive displacement sensor has electrical coil in detunable oscillating circuit, movable coil core in coil, coil body divided into at least two sections with different winding densities

摘要

The inductive displacement sensor has an electrical coil connected in a detunable oscillating circuit and a movable coil core arranged in the coil. The coil body of the coil is divided into at least two sections and the winding densities in the sections are different. The coil body can have at least three sections or sectors (S1-S5) whose winding densities differ by a constant factor.