Optical sensors improve railway safety

[unable to retrieve full-text content]A string of fiber-optic sensors running along a 36-km stretch of high-speed commuter railroad lines connecting Hong Kong to mainland China has taken more than 10 million measurements over the past few years in a demonstration that the system can help safeguard commuter trains and freight cars against accidents. Attuned to the contact between trains and tracks, the sensors can detect potential problems like excessive vibrations, mechanical defects or speed and temperature anomalies.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/SEixRhvC9YM/130930121835.htm

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