Invention Grant
US08736258B2 Method and device for contactless sensing rotation and angular position using orientation tracking 有权
使用方向跟踪的非接触式感测旋转和角位置的方法和装置

  • Patent Title: Method and device for contactless sensing rotation and angular position using orientation tracking
  • Patent Title (中): 使用方向跟踪的非接触式感测旋转和角位置的方法和装置
  • Application No.: US12739495
    Application Date: 2007-10-25
  • Publication No.: US08736258B2
    Publication Date: 2014-05-27
  • Inventor: Janez Trontelj
  • Applicant: Janez Trontelj
  • Applicant Address: US CA San Jose
  • Assignee: Maxim Integrated Products, Inc.
  • Current Assignee: Maxim Integrated Products, Inc.
  • Current Assignee Address: US CA San Jose
  • Agency: North Weber & Baugh LLP
  • International Application: PCT/AT2007/000496 WO 20071025
  • International Announcement: WO2009/052537 WO 20090430
  • Main IPC: G01B7/30
  • IPC: G01B7/30
Method and device for contactless sensing rotation and angular position using orientation tracking
Abstract:
1. Method and device for contactless sensing rotation and angular position using orientation tracking. 2.1 To improve the accuracy and possible resolution of a magnetic positioning system, a method and a device using a special tracking technique is proposed. 2.2. The method and the device are using multiple magnetic field sensing elements at different positions below a magnetic target. The sensed signals are used to select or combine the sensing elements for a best approach to the actual orientation of the magnet. This allows putting out the related orientation of the approach as a coarse value and the remaining displacement as a fine value. 2.3. A device using this method allows highly accurate measurement of angular positions controlling or tolerating the placement of a magnet as the input source.
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