| 摘要 |
Disclosed is an impact detection system (10) including: three or more optical fiber sensors (30) disposed respectively in different positions, the sensors (30) not being in alignment with one another, in which the sensors (30) each includes a core portion (32) to have a grating portion (33) formed therein, the grating portion (33) has a plurality of gratings; a light source (61); two or more optical filters having different pass bands to one another to an output light of one of the optical fiber sensors; and an arithmetic processing apparatus (50) to perform arithmetic processing of output values of the three or more optical fiber sensors (30) through the optical filters so as to specify a position on the subject (Z) where an impact (21) is loaded, the output values being obtained when the impact (21) is loaded on the subject (Z). |
