Title:
SENSOR SYSTEM AND SENSOR UNIT
Document Type and Number:
WIPO Patent Application WO/2017/104223
Kind Code:
A1
Abstract:
A sensor system (1) detects an abnormality of the fastening state of a fastening member (22). The sensor system (1) is provided with: a magnetism generating substance (20) that generates magnetism; and a sensor unit (10), which detects magnetism corresponding to the distance to the magnetism generating substance (20), and detects the abnormality of the fastening state of the fastening member (22) on the basis of the magnitude of the magnetism thus detected, and a predetermined threshold value. One out of the magnetism generating substance (20) and the sensor unit (10) is fixed to the fastening member (22), and moves such that the distance to the other one of the magnetism generating substance (20) and the sensor unit (10) changes on the basis of operations of the fastening member (22).
Inventors:
SATO TAKESHI (JP)
HORIBE TAKAYUKI (JP)
AMACHI NOBUMITSU (JP)
HORIBE TAKAYUKI (JP)
AMACHI NOBUMITSU (JP)
Application Number:
PCT/JP2016/079029
Publication Date:
June 22, 2017
Filing Date:
September 30, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01L5/00; F16B31/02; G01L5/24
Foreign References:
| JP2015219081A | 2015-12-07 | |||
| JP2015200560A | 2015-11-12 | |||
| JP2015145806A | 2015-08-13 | |||
| US8922199B2 | 2014-12-30 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
Download PDF: