Patent ID: 7834514

Claim:
A wireless proximity sensor for sensing the position of an object comprising: a) a body formed of a substrate material having an upper surface, a lower surface, a first end and a second end; b) at least one interdigital transducer provided on a surface of the body, wherein each of the at least one interdigital transducers has at least one first antenna associated therewith; c) at least one sensing element formed of magnetostrictive material provided on the substrate material; d) at least one magnet operatively positioned with respect to the body for providing a reference point of a position of an object, wherein the at least one magnet is adapted and configured to induce a magnetic field in the at least one sensing element; and e) a means for attaching disposed between the at least one magnet and a first side surface of the at least one sensing element, such that the at least one magnet and the first side surface of the at least one sensing element are connected, allowing for movement of the at least one magnet in relation to the at least one sensing element.