| 摘要 |
PURPOSE: A position sensor is provided to implement a precise position sensor with high resolution by showing a change of a successive resistance value due to a conductive line including the resistance value. CONSTITUTION: A position sensor comprises a film(200), a pair of conductive lines(210,220), a magnet, a contact member(250). The film is generated in a longitudinal direction. A pair of the conductive lines is generated on a front of the film in the longitudinal direction. The magnet is located as a contact state or noncontact state in a rear of the film and moves in the longitudinal direction of the film. A contact unit includes conductivity and electrically connects a pair of the conductive lines by coming into contact with the front of the film. The film is inserted in the inside of a pipe of a nonmagnetic material in the longitudinal direction, and a magnetic material is installed in a float installed in the outside of the pipe in order to move.
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