Title:
PROXIMITY SENSOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/156275
Kind Code:
A1
Abstract:
[Problem] To provide a proximity sensor system having an increased detection distance without changing the size thereof.
[Solution] A proximity sensor system (100) that detects proximity of an object to be detected (A) is provided with: a sensor unit (10) that is provided with an oscillation circuit section that forms a magnetic field at a predetermined oscillation frequency; and a unit to be detected (50), which is provided to the object to be detected (A), and which is provided with a resonant circuit section having a resonant frequency on the basis of the predetermined oscillation frequency. The oscillation circuit section is configured by including a detection coil (21) and an oscillation circuit (25).
Inventors:
SUZUKI SHINICHIRO (JP)
Application Number:
PCT/JP2014/051853
Publication Date:
October 02, 2014
Filing Date:
January 28, 2014
Export Citation:
Assignee:
AZBIL CORP (JP)
International Classes:
H03K17/95; H01H36/00; G01B7/00
Foreign References:
| JPH05315929A | 1993-11-26 | |||
| JPS6039727A | 1985-03-01 | |||
| JP2011216256A | 2011-10-27 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Yoshiyuki Inaba (JP)
Download PDF:
Previous Patent: FUEL TANK, MAIN WINGS, AIRCRAFT FUSELAGE, AIRCRAFT, AND MOVING BODY
Next Patent: PROXIMITY-SENSOR SYSTEM
Next Patent: PROXIMITY-SENSOR SYSTEM