Invention Application
US20160123778A1 ROTATION STATE DETECTION DEVICE 有权
旋转状态检测装置

  • Patent Title: ROTATION STATE DETECTION DEVICE
  • Patent Title (中): 旋转状态检测装置
  • Application No.: US14893467
    Application Date: 2014-05-26
  • Publication No.: US20160123778A1
    Publication Date: 2016-05-05
  • Inventor: Motoki TACHIIRI
  • Applicant: DENSO CORPORATION
  • Priority: JP2013-114958 20130531
  • International Application: PCT/JP2014/002756 WO 20140526
  • Main IPC: G01D5/241
  • IPC: G01D5/241 G01B7/30
ROTATION STATE DETECTION DEVICE
Abstract:
A rotation state detection device is applied to an operation device having a rotating body that rotates in response to an input of an operation force, and a supporting body that supports the rotating body rotatably. The rotation state detection device includes: a first electrode arranged at the rotating body; and a second electrode arranged at the supporting body and generating a capacitance with the first electrode. The first electrode and the second electrode are arranged to vary the capacitance periodically each time the rotating body rotates by a predetermined angle and make a shape of a capacitance waveform representing a change in the capacitance to be different. A rotational angle of the rotating body is calculated based on the number of periodic times the capacitance varies, and a rotational direction of the rotating body is determined based on the shape of the capacitance waveform.
Public/Granted literature
Information query
Patent Agency Ranking
0/0