Capacitive sensor

• US 20060176063A1
• Filed: 02/10/2005
• Published: 08/10/2006
• Est. Priority Date: 02/10/2005
• Status: Abandoned Application

• Current Assignee: Seoul National University Industry Foundation (Seoul National University)
• Original Assignee: Seoul National University Industry Foundation (Seoul National University)
• Inventors: Han, Dong-Chul, Ahn, Hyeong-Joon
• Application Number:
  US11/055,233
• Publication Number:
  US 20060176063A1
• Time in Patent Office: Days
• US Class Current: 324/688
• CPC Class Codes: G01D 5/2412 by varying overlap

Abstract

A capacitive sensor for simultaneously sensing radial movement and axial movement of a rotary body. The capacitive sensor includes a sensor housing having a pocket disposed in a radial direction and provided with one side surface opened in an axial direction; a plurality of sensor electrodes inserted into the pocket; and an insulator inserted into the pocket to fill a space between the sensor housing and the sensor electrodes. Each of the sensor electrodes includes a radial sensor plane and an axial sensor plane, and the capacitive sensor further includes a guard formed between the sensor electrodes and the sensor housing.

Claims

1. A capacitive sensor comprising:

a sensor housing having a pocket disposed in a radial direction and provided with one side surface opened in an axial direction;

a plurality of sensor electrodes having sensor planes inserted into the pocket; and

an insulator inserted into the pocket to be filled in a space between the sensor housing and the sensor electrodes,

wherein each of the sensor electrodes is formed with an axial sensor plane and a radial sensor plane perpendicular to the axial sensor plane.

2. The capacitive sensor as set forth in claim 1,

wherein each of the sensor electrodes includes a radial sensor plane and an axial sensor plane.

4. The capacitive sensor as set forth in claim 2, further comprising a guard formed between the sensor electrodes and the sensor housing.

3. (canceled)