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An axle counter is a system used in railway signalling to detect the clear or occupied status of a specified section of track. The system generally consists of a wheel sensor (one for each end of the section) and an evaluation unit for counting the axles of the train both into and out of the section.
The low ballast resistance of very long track circuits reduces their sensitivity. Track circuits can automatically detect some types of track defect such as a broken rail. In the event of power restoration after a power failure, an axle counted section is left in an undetermined state until a train has passed through the affected section.
This is a necessary, but insufficient, component of an axle counter. The reference given indicates that axle counters were introduced in the 1960s, leaving a 20 year discrepancy.-- Wcoole ( talk ) 18:42, 3 October 2014 (UTC) [ reply ]
Illustration of track circuit invented by William Robinson in 1872 Track circuit transformer on the right, new axle counter on the left (Slovenia). A track circuit is an electrical device used to prove the absence of a train on a block of rail tracks to control railway signals. An alternative to track circuits are axle counters.
Safetran VIU-ACSES Field Encoder monitors wayside status information and sends track signal states through the ground network to locomotives.. The on-board equipment consists of a computer that also stores the route characteristics database, a distance measurement subsystem to track train position, an antenna subsystem for the track mounted balises, and a data radio subsystem for communication ...
One person is dead and eight others are injured after a man opened fire at a nightclub in Amarillo, Texas, according to police. Early Sunday at 2:05 a.m. local time, the Amarillo Emergency ...
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