RAIL MEASURING SYSTEM Russian patent published in 2018 - IPC G01M11/08 

FIELD: measurement.

SUBSTANCE: described is the use of at least one fibre-optic sensor unit for measuring a mechanical quantity which affects a rail having a certain length and a neutral fibre which extends along said length of the rail. At least one fibre-optic sensor unit is provided at an angle of 30° up to 60°, in particular 45° relative to the neutral fibre or at an angle of -30° up to -60°, in particular, -45° relative to the neutral fibre. At least one fibre-optic sensor unit is irradiated with primary light to generate a light signal in reflection or transmission. Intensity of the light signal is recorded. Light signal is evaluated.

EFFECT: present application provides a use of at least one optical fibre sensor element for measuring a mechanical quantity acting on a rail, a fibre-optic sensor unit for detecting a force acting on a rail mechanical size, a track measuring system and a method of attaching an optical fibre sensor element a rail according to the independent claims.

21 cl, 6 dwg