| 主权项 |
1. A contactless bending force measurement sensor for measuring an applied bending force onto an object, comprising:
a first facing orientation defining an orientation pointing towards a surface of the object; a first magnetic field generating unit generating a magnetic field towards the facing orientation, the first magnetic field generating unit including a magnetic field generating element and a flux concentrator, the flux concentrator cooperating with the magnetic field generating element so as to concentrate the generated magnetic field towards the facing orientation, the flux concentrator having a U-shape and including a first pole and a second pole, the first and second poles being oriented in a direction of the facing orientation; a first magnetic field detector unit detecting a first magnetic field, the first magnetic field being generated by the first magnetic field generating unit and being influenced by an applied force to be measured, the first magnetic field detector unit outputting a first signal which is representative of the detected magnetic field, the first magnetic field detecting unit including a coil, the coil being situated between the first pole and the second pole, the coil being oriented in a direction corresponding to a connection line between the first pole and the second pole, a longitudinal axis of the coil extend in a direction from the first pole to the second pole; an evaluating unit evaluating a signal strength of the first signal and determining the applied force based on the first signal; and at least one feedback element connected to the evaluation unit and providing a comparative signal, the evaluation unit compensating a varying distance between the contactless force measurement sensor and the object as a function of the comparative signal. |
