Neubrex Co., Ltd.

Atsushi Makita

Kinzo Kishida

Yoshiaki Yamauchi

Kenichi Nishiguchi

Che-Hsien Li

Artur Guzik

The present invention provides a distributed optical fiber sensor capable of measuring the strain and temperature of an object to be measured simultaneously and independently with high spatial resolution. A distributed optical fiber sensor FS is a distributed optical fiber sensor which uses an optical fiberas a sensor, and a strain and temperature detectormeasures a Brillouin frequency shift amount caused by a strain and a temperature generated in the optical fiberby using a Brillouin scattering phenomenon, measures a Rayleigh frequency shift amount caused by the strain and temperature generated in the optical fiberby using a Rayleigh scattering phenomenon, and calculates the strain and temperature generated in the optical fiberfrom the measured Brillouin frequency shift amount and Rayleigh frequency shift amount.

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Kobe, Japan

Atsushi Makita