DESIGN OF HIGH-STRENGTH SENSORS Russian patent published in 2018 - IPC G01B9/02 G01H9/00 

FIELD: aviation equipment.

SUBSTANCE: invention relates to the field of aviation technology, diagnostics of the technical condition of structures made of polymer composite, metallic and hybrid materials using fiber optic acoustic controls built-in. Design of a high-strength strain and/or acoustic emission sensor consists of an optical supply fiber, a Fabry-Perot resonator, formed on an optical fiber, and a protective capillary. Space between the capillary and the optical fiber is filled with silicone oil, freely transmitting acoustic oscillations in the frequency range 1–500 kHz and damping deformation in the frequency range 0–100 Hz, a cylindrical tube with a length of (10–20) mm based on quartz glass with a diameter of (200–230) mcm is used as a capillary.

EFFECT: technical result is an increase in the structural strength of a fiber optic sensor.

5 cl, 2 dwg