ELECTRICAL DISPLACEMENT-, LOAD- OR FORCE SENSOR

Electrical displacement-, load- or force sensor comprising a spring which is subjectable to a mechanical load or force and an inductive sensor element for measuring an electrical parameter that varies depending on said mechanical load or force on the spring, wherein the inductive sensor element is the spring and said spring is placed in series with an electrical circuit comprising in parallel a switching element and an RC circuit. The sensor can then be used to measure the load or force applied to the spring by arranging that the spring is energized through an electrical current flowing through the spring and through the current path with the switching element parallel to the RC circuit, and by subsequently interrupting the current from flowing through the current path parallel to the RC circuit and forcing it to flow through the RC circuit. A voltage decay time of an electrical energy received by the RC circuit upon interruption of the current flowing through the current path parallel to the RC circuit is then measured and used as a measure for the load or force applied to the spring.