US Patent Issued to NTT on March 3 for "Optical fiber strain measuring method and optical fiber strain measuring device" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,059, issued on March 3, was assigned to NTT Inc. (Tokyo).

"Optical fiber strain measuring method and optical fiber strain measuring device" was invented by Atsushi Nakamura (Musashino, Japan), Yusuke Koshikiya (Musashino, Japan) and Nazuki Honda (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an optical fiber strain measurement method including, in order: a strain amount measurement step S2 of measuring a strain amount Epsilonn' of each core wire of an optical fiber ribbon F; a torsion angle calculation step S3 of calculating a torsion angle Gamma per unit length of the optical fiber ribbon F on the...