US 12,216,014 B2
Deformation measuring device and deformation measuring method
Daiki Kobayashi, Tokyo (JP); Kazuaki Watanabe, Tokyo (JP); Masafumi Nakagawa, Tokyo (JP); and Atsushi Aratake, Tokyo (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Appl. No. 17/912,099
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
PCT Filed Mar. 18, 2020, PCT No. PCT/JP2020/012105
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/186641, PCT Pub. Date Sep. 23, 2021.
Prior Publication US 2023/0041474 A1, Feb. 9, 2023
Int. Cl. G01L 1/22 (2006.01); G01B 7/16 (2006.01); G01L 5/10 (2020.01); G01L 5/102 (2020.01); G01M 5/00 (2006.01); F16L 11/118 (2006.01); H02G 3/04 (2006.01)
CPC G01L 1/2287 (2013.01) [G01B 7/16 (2013.01); G01L 5/10 (2013.01); G01L 5/102 (2013.01); G01M 5/0058 (2013.01); F16L 11/118 (2013.01); G01M 5/0025 (2013.01); H02G 3/0468 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A strain measuring device for measuring strain on a flexible electric pipe, the device comprising:
a viscous body that has a lower rigidity than the flexible electric pipe and covers an uneven surface of the flexible electric pipe; and
a strain gauge that is attached to a portion of a surface of the viscous body.