FIBER OPTICAL FORCE SENSOR Russian patent published in 2019 - IPC G01L1/24 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the measurement equipment, namely, to the fiber-optic sensors (FOS), and can be used in various measuring systems for the force, pressure and deformation monitoring (measuring). Fiber optic force sensor, made on the basis of a multimode optical fiber, containing radiation input and output sections with optical connectors installed in the rectangular cross section housing, according to the invention the throughput channel is made all-metal of the cantilever type, the throughput channel is made in the sensor array in the form of the through U-shaped groove dividing the array into two parts: external – deformable (working) and internal – static, connected by bridges, the sensor through slot central part has two sinusoidal shaped parallel sections, located opposite each other, with the number of peaks and their amplitude, determined taking into account of the controlled loads, in the formed bridges center there are holes with the same diameter as the optical fiber, the through groove on the optical fiber both sides is filled with liquid rubber.

EFFECT: ability to use the sensor to measure tensile and compressive loads without complicating the design while maintaining the sensor reliability, the ability to be used as part of the force-measuring machine of any configuration.

1 cl, 5 dwg