Optical fiber grating sensor-based axle counter

Abstract

An optical fiber grating sensor-based axle counter is characterized in that an optical fiber grating sensor of the axle counter is buried in a burying layer of an elastomer material; the elastic burying layer can be obviously deformed under an external action, and the optical fiber grating sensor can sensibly detect the deformation stress by the deformation of the elastic burying layer, so the operation condition of electric cars and trains of which the wheels are rubber wheels can be precisely detected. Besides, the elastic burying layer can better protect the optical fiber grating sensor.

Description

technical field [0001] The invention relates to the technical field of axle counting, in particular to an axle counting device based on a fiber grating sensor. Background technique [0002] At present, rail transit is developing rapidly in China. With the continuous improvement of transportation capacity of urban rail, subway, tram and other means of transportation, the transportation requirements are also getting higher and higher, and the safety operation is also paid special attention to. Monorails and trains are also emerging in the increasingly modern rail transit. At present, the facilities for detecting the position of trains usually use track circuits or axle counting systems. Traditional axle counting devices mostly use electrical or electromagnetic detection systems, which have low anti-electromagnetic interference capabilities. For trams and trains with rubber tires, the tires themselves will deform when the rubber tires are rolled on the track. Traditional axle...

AI Technical Summary

Problems solved by technology

At present, the facilities for detecting the position of trains usually use track circuits or axle counting systems. The traditional axle counting devices mostly use electrical or electromagnetic detection systems, which have low anti-electromagnetic interference capabilities.

For trams and trains with rubber tires, the tires themselves will deform when the rubber tires are rolled on the track. Traditional axle counting devices cannot accurately detect the operation of trams and trains with rubber wheels. can even generate false detections

Moreover, the traditional axle counting device cannot better protect the fiber grating sensor in the axle counting device.

Images