Patents Assigned to Sanko Seiki Mfg. Co., Ltd.
  • Device for measuring displacement including a displacement sensor with a detection coil and excitation coils
    Patent number: 7061231
    Abstract: A displacement measuring device for detecting a relative position of an object by interposing the object between a set of at least two displacement sensors. The displacement sensor may comprise of a core body that includes a detection coil and a pair of excitation coils. The sensor may produce a differential output based on the balance of the magnetic flux between the excitation coils with satisfactory linearity and/or higher sensitivity, in which the impedance due to the DC resistance component or the like is removed.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: June 13, 2006
    Assignee: Sanko Seiki Mfg. Co., Ltd.
    Inventor: Shogo Momose