Title:
DEVICE AND SYSTEM FOR WIRELESS DIAGNOSIS OF DYNAMIC CONDITION OF FASTENERS
Document Type and Number:
Japanese Patent JP2023124078
Kind Code:
A
Abstract:
To allow for wireless diagnosis of fasteners over a communication distance on the order of meters.SOLUTION: A washer device 1 is assembled to at least one side of a head 32 of a fastening bolt 31 and a nut 33. The washer device 1 has: a washer section 3 incorporating a capacitor; and a wireless IC tag section 5. The wireless IC tag section 5 wirelessly transmits measurement data corresponding to a capacitance value of the capacitor in the washer device 1 to an external wireless IC tag reader. A distance of the wireless transmission is, for example, several meters, possibly 10 meters or more.SELECTED DRAWING: Figure 3
Inventors:
SAIGO FUMITAKA
Application Number:
JP2022027652A
Publication Date:
September 06, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
SANNOHASHI CORP
International Classes:
G01L5/00; F16B31/02; G06K19/07
Attorney, Agent or Firm:
Patent Attorney Corporation Wilfort International Patent Office