Title:
緩み検出センサ及びそれを用いた緩み検出方法
Document Type and Number:
Japanese Patent JP7364941
Kind Code:
B2
Abstract:
A looseness detection sensor for detecting looseness of a bolt for fixing a component, including: a resonance unit arranged adjacent to a head portion of the bolt and made of an insulating material confining a high-frequency signal input externally; and a conductive member in conduction with the component across the resonance unit, wherein the conductive member is a cap put on the head portion of the bolt and includes a protrusion contacting a surface of the component.
Inventors:
Eri Matsunaga
Naoshi Minoyani
Masato Nakamura
Masayuki Tsuda
Naoshi Minoyani
Masato Nakamura
Masayuki Tsuda
Application Number:
JP2021572239A
Publication Date:
October 19, 2023
Filing Date:
January 24, 2020
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G01L5/00; F16B31/02
Domestic Patent References:
| JP2015203638A | ||||
| JP2005077298A | ||||
| JP2010197273A |
Foreign References:
| US20140129158 | ||||
| US4294122 | ||||
| US20140190267 | ||||
| US20050284231 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Rie Kudo
Rie Kudo