Patent ID: 11885699
Assignee: HUMANETICS INNOVATIVE SOLUTIONS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. An anthropomorphic test device that undergoes a sudden impact causing deformation in a short time span, said anthropomorphic test device comprising:
at least one of body part simulating at least a part of a human body that may undergo deformation when subjected to the sudden impact;
at least one optical fiber supported by and in contact with said at least one body part with said optical fiber extending between a first end and a second end along a fiber axis; and
said optical fiber having a plurality of cores extending between said first and said second ends and each of said cores having a plurality of grating sensors inscribed integrally therewith along a length therein with said sensors spaced along a length between said first and said second ends;
wherein said plurality of cores are further defined as having at least one location along said respective length where said plurality of cores are helically wound about each other along said fiber axis; and
wherein deformation of said body part causes strain on said optical fiber that stretches and compresses said grating sensors thereby changing the reflection of the light from each of said plurality of cores that is used to measure torsion of said body parts.