公开(公告)号：US4736122A

公开(公告)日：1988-04-05

申请号：US38611

申请日：1987-04-15

申请人： John E. Opie ,  Carroll D. Sloan ,  John R. Wiegand, deceased

发明人： John E. Opie ,  Carroll D. Sloan ,  John R. Wiegand, deceased

IPC分类号： G11C11/04 ,  G11C11/08

CPC分类号： G11C11/04 ,  G11C11/08

摘要： A read head for a Wiegand wire has an E-core with a pick-up coil for the "1" bit wound on one outer leg and a separate pick-up coil for the "0" bit wound on a second outer leg. The E-core is composed of a relatively thin ferromagnetic E-laminae spaced from a relatively thick E-laminae. Between thin and thick laminae in each leg there is an appropriately polarized magnet. The result is to establish a first field across the face of the read head between the center leg and a first outer leg. This first field reads the one bits. Similarly, a second field between the center leg and the other outer leg reads the zero bits. Each one bit wire is on one side of the code strip and each zero bit wire is on the other side of the code strip so that the one bit and zero bit wires are passed respectively across the first and second reading fields provided by the read head. Saturation of the thin E-laminae and non-saturation of the thick E-laminae assures that the field configuration is appropriate to set and switch the Wiegand wires.

摘要翻译： Wiegand线的读头具有E型芯，其具有用于在一个外腿上缠绕的“1”位的拾取线圈和用于在第二外腿上缠绕的“0”位的单独拾取线圈。 E型芯由相对薄的铁磁E层组成，与相对较厚的电子层间隔开。 在每条腿之间的薄薄层之间有一个适当的极化磁体。 结果是在中心腿和第一外腿之间的读头的表面上建立第一场。 第一个字段读取一位。 类似地，中心腿和另一个外腿之间的第二场读取零位。 每一个位线在编码条的一侧上，每个零位线都在编码条的另一侧，使得一位和零位线分别通过读头提供的第一和第二读取字段 。 厚电子薄层的饱和度和厚电子层的不饱和度确保了现场配置适合设置和切换韦根电线。

公开(公告)号：US4593209A

公开(公告)日：1986-06-03

申请号：US613635

申请日：1984-05-24

申请人： Carroll D. Sloan

发明人： Carroll D. Sloan

IPC分类号： G01R33/02 ,  G06K7/08 ,  G11C11/04 ,  H03K3/45

CPC分类号： G06K7/087 ,  G01R33/02 ,  G06K7/083

摘要： A read head for a Wiegand Wire has a low reluctance core on which a pick-up coil is wound. The Wiegand Wires are passed over a face of the core and coil and switch state directly over the core and coil so that the change in the magnetic field is coupled to the coil to produce an output pulse. Outboard of the direction in which the Wiegand Wires travels are first and second magnets that generate the field. In contact with these magnets and bridging both sides of the coil are first and second magnetic shunt members which control and determine the shape of the field. A first magnetic shunt member has a relatively narrow bridge portion which saturates under the field involved and thus there is a large leakage field adjacent to the face of the read head for the purpose of appropriately setting the Wiegand Wires. The second shunt has a much larger bridge portion so that there is much less leakage flux. However this smaller leakage flux is in the opposite direction from the leakage flux from the first shunt. The leakage flux from the second shunt serves to establish, accordingly, a negative field having a magnitude sufficient to reset the Wiegand Wire. In this fashion the two magnets and two shunts determine the strength and configuration of the field.

摘要翻译： Wiegand Wire的读头具有低磁阻芯，其上缠绕有拾音线圈。 Wiegand线通过芯线和线圈的面，并直接通过芯线圈和线圈开关状态，使得磁场的变化耦合到线圈以产生输出脉冲。 威格导线行进方向的外侧是产生场的第一和第二磁体。 与这些磁体接触并桥接线圈的两侧是控制和确定场的形状的第一和第二磁分路构件。 第一磁分路构件具有相对窄的桥接部分，其在所涉及的磁场下饱和，因此为了适当地设置韦根电线，存在与读取头的表面相邻的大的泄漏场。 第二分路具有更大的桥接部分，使得漏电流更少。 然而，较小的漏磁通量与来自第一分流器的漏磁通相反。 因此，来自第二分路的漏磁通用于建立具有足以复位韦根线的幅度的负磁场。 以这种方式，两个磁铁和两个分流器确定了该领域的强度和配置。