Inductive Sensor Arrangement for Detecting the Movement of a Movable Body

An inductive sensor arrangement for detecting a movement of a movable body, having at least one measured value acquisition device, which comprises at least one exciter structure, at least one receiver structure, and at least one coupling device, wherein:

• the at least one measured value acquisition device or the at least one coupling device is coupled to the movable body,
• at least one evaluation and control unit is designed to couple a periodic alternating signal into the at least one exciter structure during operation and to evaluate signals induced in the at least one receiver structure and to determine a measurement signal for a current position of the movable body,
• the at least one coupling device has a base body with at least one electrically conductive coupling segment and is designed to influence an inductive coupling between the at least one exciter structure and the at least one receiver structure, and
• an overlap ratio, which is calculated from an overlap dimension of the at least one electrically conductive coupling segment in the direction of movement with respect to a periodic section of the at least one receiver structure, is selected as a function of a resulting measurement error and a resulting amplitude of the measurement signal such that the resulting measurement error of the measurement signal falls below a predetermined first threshold value, which is present at an overlap ratio of 0.5, and the resulting amplitude exceeds a predetermined design-dependent second threshold value.