| 摘要 |
A linear position sensor that utilizes the "Wiegand Effect" to sense the position of an object along a linear path of travel. A magnetic field generator such as an electro magnet generates an alternating magnetic field and is movable relative to a linear path of travel. A Wiegand wire extends along and is adjacent to that linear path of travel so that a segment of Wiegand wire located within the alternating magnetic field changes its magnetic state in response thereto. Pickup coils are wound on different portions of the Wiegand wire and a pulse is produced on the respective pickup coil that is wound on that segment of Wiegand wire changing magnetic states. The position of the magnetic field generator along the linear path is ascertained from the pickup coil having pulses thereon. |
